diff --git a/.github/workflows/e2e-playwright.yml b/.github/workflows/e2e-playwright.yml
index ad3142de9f2..f485083af73 100644
--- a/.github/workflows/e2e-playwright.yml
+++ b/.github/workflows/e2e-playwright.yml
@@ -155,7 +155,7 @@ jobs:
       - name: Install and Build
         run: |
           pnpm install
-          pnpm run create:shared
+          pnpm compile:ts
           pnpm run build:curriculum
 
       - name: Start apps
diff --git a/.github/workflows/e2e-third-party.yml b/.github/workflows/e2e-third-party.yml
index 5b529b09a3c..12c136f6431 100644
--- a/.github/workflows/e2e-third-party.yml
+++ b/.github/workflows/e2e-third-party.yml
@@ -138,7 +138,7 @@ jobs:
       - name: Install and Build
         run: |
           pnpm install
-          pnpm run create:shared
+          pnpm compile:ts
           pnpm run build:curriculum
 
       - name: Start apps
diff --git a/.github/workflows/node.js-tests.yml b/.github/workflows/node.js-tests.yml
index 03677fd9672..df8b5ba63b9 100644
--- a/.github/workflows/node.js-tests.yml
+++ b/.github/workflows/node.js-tests.yml
@@ -68,7 +68,7 @@ jobs:
       - name: Lint Source Files
         run: |
           echo pnpm version $(pnpm -v)
-          pnpm run create:shared
+          pnpm compile:ts
           pnpm run build:curriculum
           pnpm run lint
 
diff --git a/.gitignore b/.gitignore
index 2c727bbe7ad..a0859b2a6b0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -152,7 +152,8 @@ jspm_packages/
 .netlify
 
 ### Generated config files ###
-shared/config/curriculum.json
+shared/tsconfig.tsbuildinfo
+curriculum/tsconfig.tsbuildinfo
 
 ### Old Generated files ###
 # These files are no longer generated by the client, but can
@@ -195,7 +196,7 @@ curriculum/curricula.json
 ### Additional Folders ###
 curriculum/dist
 curriculum/build
-curriculum/test/blocks-generated
+curriculum/src/test/blocks-generated
 shared-dist
 
 ### Playwright ###
@@ -204,3 +205,4 @@ shared-dist
 
 ### Shadow Testing Log Files Folder ###
 api/logs/
+
diff --git a/.gitpod.yml b/.gitpod.yml
index bf61e9b5259..a795190474c 100644
--- a/.gitpod.yml
+++ b/.gitpod.yml
@@ -52,6 +52,7 @@ tasks:
       cp sample.env .env &&
       pnpm install &&
       gp sync-done pnpm-install &&
+      pnpm compile:ts &&
       pnpm run build:curriculum &&
       gp ports await 27017
     command: >
diff --git a/api/src/utils/get-challenges.ts b/api/src/utils/get-challenges.ts
index 14200375c06..5716cc81572 100644
--- a/api/src/utils/get-challenges.ts
+++ b/api/src/utils/get-challenges.ts
@@ -7,7 +7,7 @@ import { readFileSync } from 'fs';
 import { fileURLToPath } from 'node:url';
 import { join, dirname } from 'path';
 
-const CURRICULUM_PATH = '../../../shared/config/curriculum.json';
+const CURRICULUM_PATH = '../../../shared-dist/config/curriculum.json';
 const __dirname = dirname(fileURLToPath(import.meta.url));
 // Curriculum is read using fs, because it is too large for VSCode's LSP to handle type inference which causes annoying behavior.
 const curriculum = JSON.parse(
diff --git a/client/package.json b/client/package.json
index f9be3e1e705..e1278433c97 100644
--- a/client/package.json
+++ b/client/package.json
@@ -23,7 +23,7 @@
     "build": "NODE_OPTIONS=\"--max-old-space-size=7168 --no-deprecation\" gatsby build --prefix-paths",
     "build:scripts": "pnpm run -F=browser-scripts build",
     "clean": "gatsby clean",
-    "common-setup": "pnpm -w run create:shared && pnpm run create:env && pnpm run create:trending && pnpm run create:search-placeholder",
+    "common-setup": "pnpm -w run compile:ts && pnpm run create:env && pnpm run create:trending && pnpm run create:search-placeholder",
     "create:env": "DEBUG=fcc:* tsx ./tools/create-env.ts",
     "create:trending": "tsx ./tools/download-trending.ts",
     "create:search-placeholder": "tsx ./tools/generate-search-placeholder",
diff --git a/client/utils/build-challenges.js b/client/utils/build-challenges.js
index 207330f7782..575e61458e5 100644
--- a/client/utils/build-challenges.js
+++ b/client/utils/build-challenges.js
@@ -2,20 +2,24 @@ const path = require('path');
 
 const _ = require('lodash');
 
-const { getChallengesForLang } = require('../../curriculum/get-challenges');
+const {
+  getChallengesForLang
+} = require('../../curriculum/dist/get-challenges.js');
 
 const {
-  getContentDir,
   getBlockCreator,
   getSuperblocks,
   superBlockToFilename
-} = require('../../curriculum/build-curriculum');
+} = require('../../curriculum/dist/build-curriculum.js');
 const {
+  getContentDir,
   getBlockStructure,
   getSuperblockStructure
-} = require('../../curriculum/file-handler');
-const { transformSuperBlock } = require('../../curriculum/build-superblock');
-const { getSuperOrder } = require('../../curriculum/utils');
+} = require('../../curriculum/dist/file-handler.js');
+const {
+  transformSuperBlock
+} = require('../../curriculum/dist/build-superblock.js');
+const { getSuperOrder } = require('../../curriculum/dist/utils.js');
 
 const curriculumLocale = process.env.CURRICULUM_LOCALE || 'english';
 
diff --git a/curriculum/build-certification.js b/curriculum/build-certification.js
deleted file mode 100644
index 36c6d3bdae5..00000000000
--- a/curriculum/build-certification.js
+++ /dev/null
@@ -1,8 +0,0 @@
-const fs = require('fs');
-const yaml = require('js-yaml');
-
-const buildCertification = filePath => ({
-  challenges: [yaml.load(fs.readFileSync(filePath, 'utf8'))]
-});
-
-module.exports = { buildCertification };
diff --git a/curriculum/file-handler.js b/curriculum/file-handler.js
deleted file mode 100644
index 1bfbf3f5368..00000000000
--- a/curriculum/file-handler.js
+++ /dev/null
@@ -1,207 +0,0 @@
-const path = require('node:path');
-const assert = require('node:assert');
-const fs = require('node:fs');
-const fsP = require('node:fs/promises');
-
-const debug = require('debug')('fcc:file-handler');
-
-const CURRICULUM_DIR = __dirname;
-const I18N_CURRICULUM_DIR = path.resolve(
-  CURRICULUM_DIR,
-  'i18n-curriculum',
-  'curriculum'
-);
-const STRUCTURE_DIR = path.resolve(CURRICULUM_DIR, 'structure');
-const BLOCK_STRUCTURE_DIR = path.resolve(STRUCTURE_DIR, 'blocks');
-
-/**
- * Gets language-specific configuration paths for curriculum content
- * @param {string} lang - The language code (e.g., 'english', 'spanish', etc.)
- * @param {Object} [options] - Optional configuration object with directory overrides
- * @param {string} [options.baseDir] - Base directory for curriculum content (defaults to CURRICULUM_DIR)
- * @param {string} [options.i18nBaseDir] - Base directory for i18n content (defaults to I18N_CURRICULUM_DIR)
- * @param {string} [options.structureDir] - Directory for curriculum structure (defaults to STRUCTURE_DIR)
- * @returns {Object} Object containing all relevant directory paths for the language
- * @throws {AssertionError} When required i18n directories don't exist for non-English languages
- */
-function getContentConfig(
-  lang,
-  { baseDir, i18nBaseDir } = {
-    baseDir: CURRICULUM_DIR,
-    i18nBaseDir: I18N_CURRICULUM_DIR
-  }
-) {
-  const contentDir = path.resolve(baseDir, 'challenges', 'english');
-  const i18nContentDir = path.resolve(i18nBaseDir, 'challenges', lang);
-  const blockContentDir = path.resolve(contentDir, 'blocks');
-  const i18nBlockContentDir = path.resolve(i18nContentDir, 'blocks');
-  const dictionariesDir = path.resolve(baseDir, 'dictionaries');
-  const i18nDictionariesDir = path.resolve(i18nBaseDir, 'dictionaries');
-
-  if (lang !== 'english') {
-    assert(
-      fs.existsSync(i18nContentDir),
-      `i18n content directory does not exist: ${i18nContentDir}`
-    );
-    assert(
-      fs.existsSync(i18nBlockContentDir),
-      `i18n block content directory does not exist: ${i18nBlockContentDir}`
-    );
-    assert(
-      fs.existsSync(i18nDictionariesDir),
-      `i18n dictionaries directory does not exist: ${i18nDictionariesDir}`
-    );
-  }
-
-  debug(`Using content directory: ${contentDir}`);
-  debug(`Using i18n content directory: ${i18nContentDir}`);
-  debug(`Using block content directory: ${blockContentDir}`);
-  debug(`Using i18n block content directory: ${i18nBlockContentDir}`);
-  debug(`Using dictionaries directory: ${dictionariesDir}`);
-  debug(`Using i18n dictionaries directory: ${i18nDictionariesDir}`);
-
-  return {
-    contentDir,
-    i18nContentDir,
-    blockContentDir,
-    i18nBlockContentDir,
-    dictionariesDir,
-    i18nDictionariesDir
-  };
-}
-
-/**
- * Gets the appropriate content directory path for a given language
- * @param {string} lang - The language code (e.g., 'english', 'spanish', etc.)
- * @returns {string} Path to the content directory for the specified language
- */
-function getContentDir(lang) {
-  const { contentDir, i18nContentDir } = getContentConfig(lang);
-
-  return lang === 'english' ? contentDir : i18nContentDir;
-}
-
-function getCurriculumStructure() {
-  const curriculumPath = path.resolve(STRUCTURE_DIR, 'curriculum.json');
-  if (!fs.existsSync(curriculumPath)) {
-    throw new Error(`Curriculum file not found: ${curriculumPath}`);
-  }
-
-  return JSON.parse(fs.readFileSync(curriculumPath, 'utf8'));
-}
-
-function getBlockStructurePath(block) {
-  return path.resolve(BLOCK_STRUCTURE_DIR, `${block}.json`);
-}
-
-function getBlockStructureDir() {
-  return BLOCK_STRUCTURE_DIR;
-}
-
-function getBlockStructure(block) {
-  return JSON.parse(fs.readFileSync(getBlockStructurePath(block), 'utf8'));
-}
-
-async function writeBlockStructure(block, structure) {
-  // dynamically importing prettier because Gatsby build and develop fail when
-  // it's required.
-  const prettier = await import('prettier');
-  const content = await prettier.format(JSON.stringify(structure), {
-    parser: 'json'
-  });
-  await fsP.writeFile(getBlockStructurePath(block), content, 'utf8');
-}
-
-async function writeSuperblockStructure(superblock, structure) {
-  // dynamically importing prettier because Gatsby build and develop fail when
-  // it's required.
-  const prettier = await import('prettier');
-  const content = await prettier.format(JSON.stringify(structure), {
-    parser: 'json'
-  });
-  await fsP.writeFile(getSuperblockStructurePath(superblock), content);
-}
-
-function getSuperblockStructure(superblockFilename) {
-  const superblockPath = getSuperblockStructurePath(superblockFilename);
-
-  if (!fs.existsSync(superblockPath)) {
-    throw Error(`Superblock file not found: ${superblockPath}`);
-  }
-
-  return JSON.parse(fs.readFileSync(superblockPath, 'utf8'));
-}
-
-function getSuperblockStructurePath(superblockFilename) {
-  return path.resolve(
-    STRUCTURE_DIR,
-    'superblocks',
-    `${superblockFilename}.json`
-  );
-}
-
-/**
- * Gets language-specific configuration paths for curriculum content
- * @param {string} lang - The language code (e.g., 'english', 'spanish', etc.)
- * @param {Object} [options] - Optional configuration object with directory overrides
- * @param {string} [options.baseDir] - Base directory for curriculum content (defaults to CURRICULUM_DIR)
- * @param {string} [options.i18nBaseDir] - Base directory for i18n content (defaults to I18N_CURRICULUM_DIR)
- * @param {string} [options.structureDir] - Directory for curriculum structure (defaults to STRUCTURE_DIR)
- * @returns {Object} Object containing all relevant directory paths for the language
- * @throws {AssertionError} When required i18n directories don't exist for non-English languages
- */
-function getLanguageConfig(
-  lang,
-  { baseDir, i18nBaseDir } = {
-    baseDir: CURRICULUM_DIR,
-    i18nBaseDir: I18N_CURRICULUM_DIR
-  }
-) {
-  const contentDir = path.resolve(baseDir, 'challenges', 'english');
-  const i18nContentDir = path.resolve(i18nBaseDir, 'challenges', lang);
-  const blockContentDir = path.resolve(contentDir, 'blocks');
-  const i18nBlockContentDir = path.resolve(i18nContentDir, 'blocks');
-  const dictionariesDir = path.resolve(baseDir, 'dictionaries');
-  const i18nDictionariesDir = path.resolve(i18nBaseDir, 'dictionaries');
-
-  if (lang !== 'english') {
-    assert(
-      fs.existsSync(i18nContentDir),
-      `i18n content directory does not exist: ${i18nContentDir}`
-    );
-    assert(
-      fs.existsSync(i18nBlockContentDir),
-      `i18n block content directory does not exist: ${i18nBlockContentDir}`
-    );
-    assert(
-      fs.existsSync(i18nDictionariesDir),
-      `i18n dictionaries directory does not exist: ${i18nDictionariesDir}`
-    );
-  }
-
-  debug(`Using content directory: ${contentDir}`);
-  debug(`Using i18n content directory: ${i18nContentDir}`);
-  debug(`Using i18n block content directory: ${i18nBlockContentDir}`);
-  debug(`Using dictionaries directory: ${dictionariesDir}`);
-  debug(`Using i18n dictionaries directory: ${i18nDictionariesDir}`);
-
-  return {
-    contentDir,
-    i18nContentDir,
-    blockContentDir,
-    i18nBlockContentDir,
-    dictionariesDir,
-    i18nDictionariesDir
-  };
-}
-
-exports.getContentConfig = getContentConfig;
-exports.getContentDir = getContentDir;
-exports.getBlockStructureDir = getBlockStructureDir;
-exports.getBlockStructure = getBlockStructure;
-exports.getBlockStructurePath = getBlockStructurePath;
-exports.getSuperblockStructure = getSuperblockStructure;
-exports.getCurriculumStructure = getCurriculumStructure;
-exports.writeBlockStructure = writeBlockStructure;
-exports.writeSuperblockStructure = writeSuperblockStructure;
-exports.getLanguageConfig = getLanguageConfig;
diff --git a/curriculum/get-challenges.js b/curriculum/get-challenges.js
deleted file mode 100644
index 9ea921565c5..00000000000
--- a/curriculum/get-challenges.js
+++ /dev/null
@@ -1,33 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const util = require('util');
-
-const { curriculum: curriculumLangs } =
-  require('../shared-dist/config/i18n').availableLangs;
-const { buildCurriculum } = require('./build-curriculum');
-
-const access = util.promisify(fs.access);
-
-exports.getChallengesForLang = async function getChallengesForLang(
-  lang,
-  filters
-) {
-  const invalidLang = !curriculumLangs.includes(lang);
-  if (invalidLang)
-    throw Error(`${lang} is not an accepted language.
-Accepted languages are ${curriculumLangs.join(', ')}`);
-
-  return buildCurriculum(lang, filters);
-};
-
-async function hasEnglishSource(basePath, translationPath) {
-  const englishRoot = path.resolve(__dirname, basePath, 'english');
-  return await access(
-    path.join(englishRoot, translationPath),
-    fs.constants.F_OK
-  )
-    .then(() => true)
-    .catch(() => false);
-}
-
-exports.hasEnglishSource = hasEnglishSource;
diff --git a/curriculum/package.json b/curriculum/package.json
index 27ea35b9dd7..1d6e0377092 100644
--- a/curriculum/package.json
+++ b/curriculum/package.json
@@ -31,17 +31,20 @@
     "delete-step": "CALLING_DIR=$INIT_CWD tsx --tsconfig ../tsconfig.json ../tools/challenge-helper-scripts/delete-step",
     "delete-challenge": "CALLING_DIR=$INIT_CWD tsx --tsconfig ../tsconfig.json ../tools/challenge-helper-scripts/delete-challenge",
     "delete-task": "CALLING_DIR=$INIT_CWD tsx --tsconfig ../tsconfig.json ../tools/challenge-helper-scripts/delete-task",
-    "lint": "tsx --tsconfig ../tsconfig.json lint-localized",
+    "lint": "tsx --tsconfig ../tsconfig.json src/lint-localized",
     "reorder-tasks": "CALLING_DIR=$INIT_CWD tsx --tsconfig ../tsconfig.json ../tools/challenge-helper-scripts/reorder-tasks",
     "update-challenge-order": "CALLING_DIR=$INIT_CWD tsx --tsconfig ../tsconfig.json ../tools/challenge-helper-scripts/update-challenge-order",
     "update-step-titles": "CALLING_DIR=$INIT_CWD tsx --tsconfig ../tsconfig.json ../tools/challenge-helper-scripts/update-step-titles",
-    "test-gen": "node ./test/utils/generate-block-tests.mjs",
-    "test": "NODE_OPTIONS='--max-old-space-size=7168' pnpm -s test-gen && vitest -c test/vitest.config.mjs"
+    "test-gen": "tsx ./src/test/utils/generate-block-tests.ts",
+    "test": "NODE_OPTIONS='--max-old-space-size=7168' pnpm -s test-gen && vitest -c src/test/vitest.config.mjs"
   },
   "devDependencies": {
     "@babel/core": "7.23.7",
     "@babel/register": "7.23.7",
     "@types/polka": "^0.5.7",
+    "@total-typescript/ts-reset": "^0.6.1",
+    "@types/debug": "^4.1.12",
+    "@types/js-yaml": "4.0.5",
     "@types/string-similarity": "^4.0.2",
     "@vitest/ui": "^3.2.4",
     "chai": "4.4.1",
diff --git a/curriculum/build-certification.test.js b/curriculum/src/build-certification.test.js
similarity index 97%
rename from curriculum/build-certification.test.js
rename to curriculum/src/build-certification.test.js
index aea6b9a7efa..cf4081d7b7a 100644
--- a/curriculum/build-certification.test.js
+++ b/curriculum/src/build-certification.test.js
@@ -3,7 +3,7 @@ import path from 'path';
 import { fileURLToPath } from 'url';
 import { describe, test, expect } from 'vitest';
 
-import { allCerts } from '../client/config/cert-and-project-map.js';
+import { allCerts } from '../../client/config/cert-and-project-map.js';
 import { buildCertification } from './build-certification.js';
 
 const __filename = fileURLToPath(import.meta.url);
@@ -12,6 +12,7 @@ const __dirname = path.dirname(__filename);
 describe('build-certification', () => {
   const certificationsDir = path.join(
     __dirname,
+    '..',
     'challenges/english/certifications'
   );
   const yamlFiles = fs
diff --git a/curriculum/src/build-certification.ts b/curriculum/src/build-certification.ts
new file mode 100644
index 00000000000..9293ba1a06c
--- /dev/null
+++ b/curriculum/src/build-certification.ts
@@ -0,0 +1,6 @@
+import { readFileSync } from 'fs';
+import { load } from 'js-yaml';
+
+export const buildCertification = (filePath: string) => ({
+  challenges: [load(readFileSync(filePath, 'utf8'))]
+});
diff --git a/curriculum/build-curriculum.test.js b/curriculum/src/build-curriculum.test.js
similarity index 88%
rename from curriculum/build-curriculum.test.js
rename to curriculum/src/build-curriculum.test.js
index 9188334023d..6f9585be604 100644
--- a/curriculum/build-curriculum.test.js
+++ b/curriculum/src/build-curriculum.test.js
@@ -1,22 +1,27 @@
 import path from 'node:path';
-import { fileURLToPath } from 'node:url';
 import { describe, it, expect, vi } from 'vitest';
 
+import { SuperBlocks } from '../../shared/config/curriculum.js';
 import {
   createCommentMap,
   addBlockStructure,
-  getSuperblocks
+  getSuperblocks,
+  superBlockNames
 } from './build-curriculum.js';
 import { getCurriculumStructure } from './file-handler.js';
 
 vi.mock('./file-handler');
-const __filename = fileURLToPath(import.meta.url);
-const __dirname = path.dirname(__filename);
 
 describe('createCommentMap', () => {
-  const dictionaryDir = path.resolve(__dirname, '__fixtures__', 'dictionaries');
+  const dictionaryDir = path.resolve(
+    import.meta.dirname,
+    '..',
+    '__fixtures__',
+    'dictionaries'
+  );
   const incompleteDictDir = path.resolve(
-    __dirname,
+    import.meta.dirname,
+    '..',
     '__fixtures__',
     'incomplete-dicts'
   );
@@ -169,3 +174,13 @@ describe('getSuperblocks', () => {
     ]);
   });
 });
+
+describe('superBlockNames', () => {
+  it('should have mappings for each SuperBlock', () => {
+    const superBlocks = Object.values(SuperBlocks).sort(); // sorting to make comparison clearer
+    const names = Object.values(superBlockNames).sort();
+
+    expect(names).toHaveLength(superBlocks.length);
+    expect(names).toEqual(expect.arrayContaining(superBlocks));
+  });
+});
diff --git a/curriculum/build-curriculum.js b/curriculum/src/build-curriculum.ts
similarity index 56%
rename from curriculum/build-curriculum.js
rename to curriculum/src/build-curriculum.ts
index 75c68365ff7..8e261a6eb57 100644
--- a/curriculum/build-curriculum.js
+++ b/curriculum/src/build-curriculum.ts
@@ -1,26 +1,36 @@
-const fs = require('fs');
-const path = require('path');
+import { readdirSync, readFileSync, existsSync } from 'fs';
+import { resolve, basename } from 'path';
 
-const { isEmpty, isUndefined } = require('lodash');
-const debug = require('debug')('fcc:build-curriculum');
+import { isEmpty, isUndefined } from 'lodash';
+import debug from 'debug';
 
-const {
+import type { CommentDictionary } from '../../tools/challenge-parser/translation-parser/index.js';
+import { SuperBlocks } from '../../shared-dist/config/curriculum.js';
+import {
   SuperblockCreator,
   BlockCreator,
-  transformSuperBlock
-} = require('./build-superblock');
+  transformSuperBlock,
+  BlockInfo
+} from './build-superblock.js';
 
-const { buildCertification } = require('./build-certification');
-const { applyFilters, closestFilters, getSuperOrder } = require('./utils');
-const {
+import { buildCertification } from './build-certification.js';
+import {
+  applyFilters,
+  closestFilters,
+  Filter,
+  getSuperOrder
+} from './utils.js';
+import {
   getContentDir,
   getLanguageConfig,
   getCurriculumStructure,
   getBlockStructure,
   getSuperblockStructure,
   getBlockStructurePath,
-  getBlockStructureDir
-} = require('./file-handler');
+  getBlockStructureDir,
+  type BlockStructure
+} from './file-handler.js';
+const log = debug('fcc:build-curriculum');
 
 /**
  * Creates a BlockCreator instance for a specific language with appropriate configuration
@@ -32,7 +42,11 @@ const {
  * @param {string} [opts.structureDir] - Directory containing curriculum structure
  * @returns {BlockCreator} A configured BlockCreator instance
  */
-const getBlockCreator = (lang, skipValidation, opts) => {
+export const getBlockCreator = (
+  lang: string,
+  skipValidation?: boolean,
+  opts?: { baseDir: string; i18nBaseDir: string; structureDir: string }
+) => {
   const {
     blockContentDir,
     i18nBlockContentDir,
@@ -63,9 +77,12 @@ const getBlockCreator = (lang, skipValidation, opts) => {
  * @param {string} params.text - The fallback English text to use if translation not found
  * @returns {Object} Object mapping language codes to translated text or fallback English text
  */
-function getTranslationEntry(dicts, { engId, text }) {
+export function getTranslationEntry(
+  dicts: Record<string, Record<string, unknown>>,
+  { engId, text }: { engId: string; text: string }
+) {
   return Object.keys(dicts).reduce((acc, lang) => {
-    const entry = dicts[lang][engId];
+    const entry = dicts[lang]?.[engId];
     if (entry) {
       return { ...acc, [lang]: entry };
     } else {
@@ -81,19 +98,18 @@ function getTranslationEntry(dicts, { engId, text }) {
  * @param {string} targetDictionariesDir - Path to the target (i18n or english) dictionaries directory
  * @returns {Object} Object mapping English comment text to translations in all languages
  */
-function createCommentMap(dictionariesDir, targetDictionariesDir) {
-  debug(
+export function createCommentMap(
+  dictionariesDir: string,
+  targetDictionariesDir: string
+): CommentDictionary {
+  log(
     `Creating comment map from ${dictionariesDir} and ${targetDictionariesDir}`
   );
-  const languages = fs.readdirSync(targetDictionariesDir);
+  const languages = readdirSync(targetDictionariesDir);
 
   const dictionaries = languages.reduce((acc, lang) => {
-    const commentsPath = path.resolve(
-      targetDictionariesDir,
-      lang,
-      'comments.json'
-    );
-    const commentsData = JSON.parse(fs.readFileSync(commentsPath, 'utf8'));
+    const commentsPath = resolve(targetDictionariesDir, lang, 'comments.json');
+    const commentsData = JSON.parse(readFileSync(commentsPath, 'utf8'));
     return {
       ...acc,
       [lang]: commentsData
@@ -101,22 +117,15 @@ function createCommentMap(dictionariesDir, targetDictionariesDir) {
   }, {});
 
   const COMMENTS_TO_TRANSLATE = JSON.parse(
-    fs.readFileSync(
-      path.resolve(dictionariesDir, 'english', 'comments.json'),
-      'utf8'
-    )
-  );
+    readFileSync(resolve(dictionariesDir, 'english', 'comments.json'), 'utf8')
+  ) as Record<string, string>;
 
   const COMMENTS_TO_NOT_TRANSLATE = JSON.parse(
-    fs.readFileSync(
-      path.resolve(
-        dictionariesDir,
-        'english',
-        'comments-to-not-translate.json'
-      ),
+    readFileSync(
+      resolve(dictionariesDir, 'english', 'comments-to-not-translate.json'),
       'utf8'
     )
-  );
+  ) as Record<string, string>;
 
   // map from english comment text to translations
   const translatedCommentMap = Object.entries(COMMENTS_TO_TRANSLATE).reduce(
@@ -126,7 +135,7 @@ function createCommentMap(dictionariesDir, targetDictionariesDir) {
         [text]: getTranslationEntry(dictionaries, { engId: id, text })
       };
     },
-    {}
+    {} as CommentDictionary
   );
 
   // map from english comment text to itself
@@ -144,63 +153,62 @@ function createCommentMap(dictionariesDir, targetDictionariesDir) {
       ...acc,
       [text]: englishEntry
     };
-  }, {});
+  }, {} as CommentDictionary);
 
   const allComments = { ...translatedCommentMap, ...untranslatableCommentMap };
 
   // the english entries need to be added here, because english is not in
   // languages
   Object.keys(allComments).forEach(comment => {
-    allComments[comment].english = comment;
+    allComments[comment]!.english = comment;
   });
 
   return allComments;
 }
 
 // Map of superblock filenames to their SuperBlocks enum values
-const superBlockNames = {
-  'responsive-web-design': 'responsive-web-design',
-  'javascript-algorithms-and-data-structures':
-    'javascript-algorithms-and-data-structures',
-  'front-end-development-libraries': 'front-end-development-libraries',
-  'data-visualization': 'data-visualization',
-  'back-end-development-and-apis': 'back-end-development-and-apis',
-  'quality-assurance': 'quality-assurance',
-  'scientific-computing-with-python': 'scientific-computing-with-python',
-  'data-analysis-with-python': 'data-analysis-with-python',
-  'information-security': 'information-security',
-  'coding-interview-prep': 'coding-interview-prep',
-  'machine-learning-with-python': 'machine-learning-with-python',
-  'relational-databases': 'relational-database',
-  'responsive-web-design-22': '2022/responsive-web-design',
+export const superBlockNames = {
+  'responsive-web-design': SuperBlocks.RespWebDesign,
+  'javascript-algorithms-and-data-structures': SuperBlocks.JsAlgoDataStruct,
+  'front-end-development-libraries': SuperBlocks.FrontEndDevLibs,
+  'data-visualization': SuperBlocks.DataVis,
+  'back-end-development-and-apis': SuperBlocks.BackEndDevApis,
+  'quality-assurance': SuperBlocks.QualityAssurance,
+  'scientific-computing-with-python': SuperBlocks.SciCompPy,
+  'data-analysis-with-python': SuperBlocks.DataAnalysisPy,
+  'information-security': SuperBlocks.InfoSec,
+  'coding-interview-prep': SuperBlocks.CodingInterviewPrep,
+  'machine-learning-with-python': SuperBlocks.MachineLearningPy,
+  'relational-databases': SuperBlocks.RelationalDb,
+  'responsive-web-design-22': SuperBlocks.RespWebDesignNew,
   'javascript-algorithms-and-data-structures-22':
-    'javascript-algorithms-and-data-structures-v8',
-  'the-odin-project': 'the-odin-project',
-  'college-algebra-with-python': 'college-algebra-with-python',
-  'project-euler': 'project-euler',
-  'foundational-c-sharp-with-microsoft': 'foundational-c-sharp-with-microsoft',
-  'a2-english-for-developers': 'a2-english-for-developers',
-  'rosetta-code': 'rosetta-code',
-  'python-for-everybody': 'python-for-everybody',
-  'b1-english-for-developers': 'b1-english-for-developers',
-  'full-stack-developer': 'full-stack-developer',
-  'a1-professional-spanish': 'a1-professional-spanish',
-  'a2-professional-spanish': 'a2-professional-spanish',
-  'a2-professional-chinese': 'a2-professional-chinese',
-  'basic-html': 'basic-html',
-  'semantic-html': 'semantic-html',
-  'a1-professional-chinese': 'a1-professional-chinese',
-  'dev-playground': 'dev-playground',
-  'full-stack-open': 'full-stack-open',
-  'responsive-web-design-v9': 'responsive-web-design-v9',
-  'javascript-v9': 'javascript-v9',
-  'front-end-development-libraries-v9': 'front-end-development-libraries-v9',
-  'python-v9': 'python-v9',
-  'relational-databases-v9': 'relational-databases-v9',
-  'back-end-development-and-apis-v9': 'back-end-development-and-apis-v9'
+    SuperBlocks.JsAlgoDataStructNew,
+  'javascript-v9': SuperBlocks.JsV9,
+  'the-odin-project': SuperBlocks.TheOdinProject,
+  'college-algebra-with-python': SuperBlocks.CollegeAlgebraPy,
+  'project-euler': SuperBlocks.ProjectEuler,
+  'foundational-c-sharp-with-microsoft': SuperBlocks.FoundationalCSharp,
+  'a2-english-for-developers': SuperBlocks.A2English,
+  'rosetta-code': SuperBlocks.RosettaCode,
+  'python-for-everybody': SuperBlocks.PythonForEverybody,
+  'b1-english-for-developers': SuperBlocks.B1English,
+  'full-stack-developer': SuperBlocks.FullStackDeveloper,
+  'a1-professional-spanish': SuperBlocks.A1Spanish,
+  'a2-professional-spanish': SuperBlocks.A2Spanish,
+  'a2-professional-chinese': SuperBlocks.A2Chinese,
+  'basic-html': SuperBlocks.BasicHtml,
+  'semantic-html': SuperBlocks.SemanticHtml,
+  'a1-professional-chinese': SuperBlocks.A1Chinese,
+  'dev-playground': SuperBlocks.DevPlayground,
+  'full-stack-open': SuperBlocks.FullStackOpen,
+  'responsive-web-design-v9': SuperBlocks.RespWebDesignV9,
+  'front-end-development-libraries-v9': SuperBlocks.FrontEndDevLibsV9,
+  'python-v9': SuperBlocks.PythonV9,
+  'relational-databases-v9': SuperBlocks.RelationalDbV9,
+  'back-end-development-and-apis-v9': SuperBlocks.BackEndDevApisV9
 };
 
-const superBlockToFilename = Object.entries(superBlockNames).reduce(
+export const superBlockToFilename = Object.entries(superBlockNames).reduce(
   (map, entry) => {
     return { ...map, [entry[1]]: entry[0] };
   },
@@ -210,41 +218,44 @@ const superBlockToFilename = Object.entries(superBlockNames).reduce(
 /**
  * Builds an array of superblock structures from a curriculum object
 
- * @param {string[]} superblocks - Array of superblock filename strings
+ * @param {string[]} superBlockFilenames - Array of superblock filename strings
  * @returns {Array<Object>} Array of superblock structure objects with filename, name, and blocks
  * @throws {Error} When a superblock file is not found
  */
-function addSuperblockStructure(
-  superblocks,
+export function addSuperblockStructure(
+  superBlockFilenames: string[],
   showComingSoon = process.env.SHOW_UPCOMING_CHANGES === 'true'
 ) {
-  debug(`Building structure for ${superblocks.length} superblocks`);
+  log(`Building structure for ${superBlockFilenames.length} superblocks`);
 
-  const superblockStructures = superblocks.map(superblockFilename => {
-    const superblockName = superBlockNames[superblockFilename];
+  const superblockStructures = superBlockFilenames.map(filename => {
+    const superblockName =
+      superBlockNames[filename as keyof typeof superBlockNames];
     if (!superblockName) {
-      throw new Error(`Superblock name not found for ${superblockFilename}`);
+      throw new Error(`Superblock name not found for ${filename}`);
     }
 
     return {
       name: superblockName,
-      blocks: transformSuperBlock(getSuperblockStructure(superblockFilename), {
+      blocks: transformSuperBlock(getSuperblockStructure(filename), {
         showComingSoon
       })
     };
   });
 
-  debug(
+  log(
     `Successfully built ${superblockStructures.length} superblock structures`
   );
 
   return superblockStructures;
 }
 
-function addBlockStructure(
-  superblocks,
+type ProcessedBlock = BlockInfo & BlockStructure;
+
+export function addBlockStructure(
+  superblocks: { name: SuperBlocks; blocks: BlockInfo[] }[],
   _getBlockStructure = getBlockStructure
-) {
+): { name: SuperBlocks; blocks: ProcessedBlock[] }[] {
   return superblocks.map(superblock => ({
     ...superblock,
     blocks: superblock.blocks.map((block, index) => ({
@@ -260,8 +271,8 @@ function addBlockStructure(
  * Returns a list of all the superblocks that contain the given block
  * @param {string} block
  */
-function getSuperblocks(
-  block,
+export function getSuperblocks(
+  block: string,
   _addSuperblockStructure = addSuperblockStructure
 ) {
   const { superblocks } = getCurriculumStructure();
@@ -274,23 +285,23 @@ function getSuperblocks(
     .map(({ name }) => name);
 }
 
-function validateBlocks(superblocks, blockStructureDir) {
+function validateBlocks(superblocks: SuperBlocks[], blockStructureDir: string) {
   const withSuperblockStructure = addSuperblockStructure(superblocks, true);
   const blockInSuperblocks = withSuperblockStructure
     .flatMap(({ blocks }) => blocks)
     .map(b => b.dashedName);
   for (const block of blockInSuperblocks) {
     const blockPath = getBlockStructurePath(block);
-    if (!fs.existsSync(blockPath)) {
+    if (!existsSync(blockPath)) {
       throw Error(
         `Block "${block}" is in a superblock, but has no block structure file at ${blockPath}`
       );
     }
   }
 
-  const blockStructureFiles = fs
-    .readdirSync(blockStructureDir)
-    .map(file => path.basename(file, '.json'));
+  const blockStructureFiles = readdirSync(blockStructureDir).map(file =>
+    basename(file, '.json')
+  );
 
   for (const block of blockStructureFiles) {
     if (!blockInSuperblocks.includes(block)) {
@@ -301,40 +312,45 @@ function validateBlocks(superblocks, blockStructureDir) {
   }
 }
 
-async function parseCurriculumStructure(filters) {
+export async function parseCurriculumStructure(filter?: Filter) {
   const curriculum = getCurriculumStructure();
   const blockStructureDir = getBlockStructureDir();
   if (isEmpty(curriculum.superblocks))
     throw Error('No superblocks found in curriculum.json');
   if (isEmpty(curriculum.certifications))
     throw Error('No certifications found in curriculum.json');
-  debug(`Found ${curriculum.superblocks.length} superblocks to build`);
-  debug(`Found ${curriculum.certifications.length} certifications to build`);
+  log(`Found ${curriculum.superblocks.length} superblocks to build`);
+  log(`Found ${curriculum.certifications.length} certifications to build`);
 
   validateBlocks(curriculum.superblocks, blockStructureDir);
 
   const superblockList = addBlockStructure(
     addSuperblockStructure(curriculum.superblocks)
   );
-  const refinedFilters = closestFilters(filters, superblockList);
-  const fullSuperblockList = applyFilters(superblockList, refinedFilters);
+  const refinedFilter = closestFilters(superblockList, filter);
+  const fullSuperblockList = applyFilters(superblockList, refinedFilter);
   return {
     fullSuperblockList,
     certifications: curriculum.certifications
   };
 }
 
-async function buildCurriculum(lang, filters) {
+export async function buildCurriculum(lang: string, filters?: Filter) {
   const contentDir = getContentDir(lang);
 
-  const builder = new SuperblockCreator({
-    blockCreator: getBlockCreator(lang, !isEmpty(filters))
-  });
+  const builder = new SuperblockCreator(
+    getBlockCreator(lang, !isEmpty(filters))
+  );
 
   const { fullSuperblockList, certifications } =
     await parseCurriculumStructure(filters);
 
-  const fullCurriculum = { certifications: { blocks: {} } };
+  const fullCurriculum: {
+    [key: string]: unknown;
+    certifications: { blocks: { [key: string]: unknown } };
+  } = {
+    certifications: { blocks: {} }
+  };
 
   const liveSuperblocks = fullSuperblockList.filter(({ name }) => {
     const superOrder = getSuperOrder(name);
@@ -353,27 +369,13 @@ async function buildCurriculum(lang, filters) {
   }
 
   for (const cert of certifications) {
-    const certPath = path.resolve(contentDir, 'certifications', `${cert}.yml`);
-    if (!fs.existsSync(certPath)) {
+    const certPath = resolve(contentDir, 'certifications', `${cert}.yml`);
+    if (!existsSync(certPath)) {
       throw Error(`Certification file not found: ${certPath}`);
     }
-    debug(`=== Processing certification ${cert} ===`);
+    log(`=== Processing certification ${cert} ===`);
     fullCurriculum.certifications.blocks[cert] = buildCertification(certPath);
   }
 
   return fullCurriculum;
 }
-
-module.exports = {
-  addBlockStructure,
-  buildCurriculum,
-  getContentDir,
-  getBlockCreator,
-  getBlockStructure,
-  getSuperblockStructure,
-  createCommentMap,
-  superBlockToFilename,
-  getSuperblocks,
-  addSuperblockStructure,
-  parseCurriculumStructure
-};
diff --git a/curriculum/build-superblock.test.js b/curriculum/src/build-superblock.test.js
similarity index 99%
rename from curriculum/build-superblock.test.js
rename to curriculum/src/build-superblock.test.js
index c6dff65bda5..480964bdd44 100644
--- a/curriculum/build-superblock.test.js
+++ b/curriculum/src/build-superblock.test.js
@@ -1,5 +1,5 @@
 import { describe, test, expect, vi } from 'vitest';
-import { isPoly } from '../shared-dist/utils/polyvinyl.js';
+import { isPoly } from '../../shared-dist/utils/polyvinyl.js';
 import {
   validateChallenges,
   buildBlock,
@@ -565,9 +565,7 @@ describe('SuperblockCreator class', () => {
         { dashedName: 'block-3' }
       ];
 
-      const parser = new SuperblockCreator({
-        blockCreator: mockBlockCreator
-      });
+      const parser = new SuperblockCreator(mockBlockCreator);
 
       const result = await parser.processSuperblock({
         blocks,
diff --git a/curriculum/build-superblock.js b/curriculum/src/build-superblock.ts
similarity index 72%
rename from curriculum/build-superblock.js
rename to curriculum/src/build-superblock.ts
index d6f34dd2037..5421f120519 100644
--- a/curriculum/build-superblock.js
+++ b/curriculum/src/build-superblock.ts
@@ -1,37 +1,58 @@
-const fs = require('fs');
-const path = require('path');
-const { isEmpty } = require('lodash');
-const debug = require('debug')('fcc:build-superblock');
+import { existsSync, readdirSync } from 'fs';
+import { resolve } from 'path';
+import { isEmpty } from 'lodash';
+import debug from 'debug';
 
-const { parseMD } = require('../tools/challenge-parser/parser');
-const { createPoly } = require('../shared-dist/utils/polyvinyl');
-const { isAuditedSuperBlock } = require('../shared-dist/utils/is-audited');
-const {
+import { parseMD } from '../../tools/challenge-parser/parser';
+import { createPoly } from '../../shared-dist/utils/polyvinyl';
+import { isAuditedSuperBlock } from '../../shared-dist/utils/is-audited';
+import {
+  CommentDictionary,
   translateCommentsInChallenge
-} = require('../tools/challenge-parser/translation-parser');
-const { getSuperOrder } = require('./utils');
+} from '../../tools/challenge-parser/translation-parser';
+import { SuperBlocks } from '../../shared-dist/config/curriculum';
+import type { Chapter } from '../../shared-dist/config/chapters';
+import { Certification } from '../../shared-dist/config/certification-settings';
+import { getSuperOrder } from './utils.js';
+import type {
+  BlockStructure,
+  Challenge,
+  ChallengeFile
+} from './file-handler.js';
 
-const duplicates = xs => xs.filter((x, i) => xs.indexOf(x) !== i);
+const log = debug('fcc:build-superblock');
 
-const createValidator = throwOnError => fn => {
+const duplicates = <T>(xs: T[]) => xs.filter((x, i) => xs.indexOf(x) !== i);
+
+const createValidator = (throwOnError?: boolean) => (fn: () => void) => {
   try {
     fn();
   } catch (error) {
     if (throwOnError) {
       throw error;
     } else {
-      console.error(error.message);
+      console.error((error as Error).message);
     }
   }
 };
 
+interface Meta extends BlockStructure {
+  order: number;
+  superBlock: SuperBlocks;
+  superOrder: number;
+}
+
 /**
  * Validates challenges against meta.json challengeOrder
  * @param {Array<object>} foundChallenges - Array of challenge objects
  * @param {object} meta - Meta object with challengeOrder array
  * @throws {Error} If validation fails (missing challenges, duplicates, etc.)
  */
-function validateChallenges(foundChallenges, meta, throwOnError) {
+export function validateChallenges(
+  foundChallenges: Challenge[],
+  meta: { challengeOrder: Challenge[]; dashedName: string },
+  throwOnError?: boolean
+) {
   const metaChallengeIds = new Set(meta.challengeOrder.map(c => c.id));
   const foundChallengeIds = new Set(foundChallenges.map(c => c.id));
 
@@ -98,7 +119,7 @@ function validateChallenges(foundChallenges, meta, throwOnError) {
  * @param {object} meta - Meta object with name, dashedName, and challengeOrder
  * @returns {object} Block object with ordered challenges
  */
-function buildBlock(foundChallenges, meta) {
+export function buildBlock(foundChallenges: Challenge[], meta: Meta) {
   const challenges = meta.challengeOrder.map(challengeInfo => {
     const challenge = foundChallenges.find(c => c.id === challengeInfo.id);
     if (!challenge) {
@@ -122,7 +143,10 @@ function buildBlock(foundChallenges, meta) {
  * @param {object} meta - The meta information object
  * @returns {object} The challenge object with added meta information
  */
-function addMetaToChallenge(challenge, meta) {
+export function addMetaToChallenge(
+  challenge: Partial<Challenge>,
+  meta: Meta
+): Challenge {
   const challengeOrderIndex = meta.challengeOrder.findIndex(
     ({ id }) => id === challenge.id
   );
@@ -168,9 +192,22 @@ function addMetaToChallenge(challenge, meta) {
   const hasDupe = dupeCertifications.find(
     cert => cert.dupe === meta.superBlock
   );
-  challenge.certification = hasDupe ? hasDupe.certification : meta.superBlock;
 
-  return challenge;
+  const maybeCert = (
+    hasDupe ? hasDupe.certification : meta.superBlock
+  ) as Certification;
+
+  challenge.certification = maybeCert;
+  // TODO: reimplement after updating the client to expect Certification | null
+  // if (isCertification(maybeCert)) {
+  //   challenge.certification = maybeCert;
+  // } else {
+  //   throw Error(
+  //     `Superblock ${meta.superBlock} does not map to a certification`
+  //   );
+  // }
+
+  return challenge as Challenge;
 }
 
 /**
@@ -178,7 +215,7 @@ function addMetaToChallenge(challenge, meta) {
  * @param {Array<object>} files - Array of challenge file objects
  * @returns {Array<object>} Array of polyvinyl objects with seed property
  */
-function challengeFilesToPolys(files) {
+export function challengeFilesToPolys(files: ChallengeFile[]) {
   return files.reduce((challengeFiles, challengeFile) => {
     return [
       ...challengeFiles,
@@ -187,7 +224,7 @@ function challengeFilesToPolys(files) {
         seed: challengeFile.contents.slice(0)
       }
     ];
-  }, []);
+  }, [] as ChallengeFile[]);
 }
 
 /**
@@ -195,7 +232,7 @@ function challengeFilesToPolys(files) {
  * @param {object} challenge - The challenge object to fix
  * @returns {object} The challenge object with fixed properties
  */
-function fixChallengeProperties(challenge) {
+export function fixChallengeProperties(challenge: Challenge) {
   const fixedChallenge = {
     ...challenge
   };
@@ -219,10 +256,10 @@ function fixChallengeProperties(challenge) {
  * @param {object} meta - The meta information object
  * @returns {object} The finalized challenge object
  */
-function finalizeChallenge(challenge, meta) {
+export function finalizeChallenge(challenge: Challenge, meta: Meta) {
   return addMetaToChallenge(fixChallengeProperties(challenge), meta);
 }
-class BlockCreator {
+export class BlockCreator {
   /**
    * @param {object} options - Options object
    * @param {string} options.blockContentDir - Directory containing block content files
@@ -234,12 +271,25 @@ class BlockCreator {
    * This class is responsible for reading block directories, parsing challenges, and validating them
    * against the meta information.
    */
+
+  blockContentDir: string;
+  i18nBlockContentDir: string;
+  lang: string;
+  commentTranslations: CommentDictionary;
+  skipValidation: boolean | undefined;
+
   constructor({
     blockContentDir,
     i18nBlockContentDir,
     lang,
     commentTranslations,
     skipValidation
+  }: {
+    blockContentDir: string;
+    i18nBlockContentDir: string;
+    lang: string;
+    commentTranslations: CommentDictionary;
+    skipValidation?: boolean;
   }) {
     this.blockContentDir = blockContentDir;
     this.i18nBlockContentDir = i18nBlockContentDir;
@@ -259,18 +309,22 @@ class BlockCreator {
    * @returns {Promise<object>} The finalized challenge object
    */
   async createChallenge(
-    { filename, block, meta, isAudited },
+    {
+      filename,
+      block,
+      meta,
+      isAudited
+    }: { filename: string; block: string; meta: Meta; isAudited: boolean },
     parser = parseMD
   ) {
-    debug(
+    log(
       `Creating challenge from file: ${filename} in block: ${block}, using lang: ${this.lang}`
     );
 
-    const englishPath = path.resolve(this.blockContentDir, block, filename);
-    const i18nPath = path.resolve(this.i18nBlockContentDir, block, filename);
+    const englishPath = resolve(this.blockContentDir, block, filename);
+    const i18nPath = resolve(this.i18nBlockContentDir, block, filename);
 
-    const langUsed =
-      isAudited && fs.existsSync(i18nPath) ? this.lang : 'english';
+    const langUsed = isAudited && existsSync(i18nPath) ? this.lang : 'english';
 
     const challengePath = langUsed === 'english' ? englishPath : i18nPath;
 
@@ -292,11 +346,11 @@ class BlockCreator {
    * @param {boolean} isAudited - Whether the block is audited for i18n
    * @returns {Promise<Array<object>>} Array of challenge objects
    */
-  async readBlockChallenges(block, meta, isAudited) {
-    const blockDir = path.resolve(this.blockContentDir, block);
-    const challengeFiles = fs
-      .readdirSync(blockDir)
-      .filter(file => file.endsWith('.md'));
+  async readBlockChallenges(block: string, meta: Meta, isAudited: boolean) {
+    const blockDir = resolve(this.blockContentDir, block);
+    const challengeFiles = readdirSync(blockDir).filter(file =>
+      file.endsWith('.md')
+    );
 
     return await Promise.all(
       challengeFiles.map(filename =>
@@ -305,13 +359,16 @@ class BlockCreator {
     );
   }
 
-  async processBlock(block, { superBlock, order }) {
+  async processBlock(
+    block: BlockStructure,
+    { superBlock, order }: { superBlock: SuperBlocks; order: number }
+  ) {
     const blockName = block.dashedName;
-    debug(`Processing block ${blockName} in superblock ${superBlock}`);
+    log(`Processing block ${blockName} in superblock ${superBlock}`);
 
     // Check if block directory exists
-    const blockContentDir = path.resolve(this.blockContentDir, blockName);
-    if (!fs.existsSync(blockContentDir)) {
+    const blockContentDir = resolve(this.blockContentDir, blockName);
+    if (!existsSync(blockContentDir)) {
       throw Error(`Block directory not found: ${blockContentDir}`);
     }
 
@@ -319,11 +376,13 @@ class BlockCreator {
       block.isUpcomingChange &&
       process.env.SHOW_UPCOMING_CHANGES !== 'true'
     ) {
-      debug(`Ignoring upcoming block ${blockName}`);
+      log(`Ignoring upcoming block ${blockName}`);
       return null;
     }
 
     const superOrder = getSuperOrder(superBlock);
+    if (superOrder === undefined)
+      throw Error(`Superblock not found: ${superBlock}`);
     const meta = {
       ...block,
       superOrder,
@@ -332,7 +391,7 @@ class BlockCreator {
       ...(block.chapter && { chapter: block.chapter }),
       ...(block.module && { module: block.module })
     };
-    const isAudited = isAuditedSuperBlock(this.lang, superBlock);
+    const isAudited = isAuditedSuperBlock(this.lang, superBlock as SuperBlocks);
 
     // Read challenges from directory
     const foundChallenges = await this.readBlockChallenges(
@@ -340,11 +399,11 @@ class BlockCreator {
       meta,
       isAudited
     );
-    debug(`Found ${foundChallenges.length} challenge files in directory`);
+    log(`Found ${foundChallenges.length} challenge files in directory`);
 
     // Log found challenges
     foundChallenges.forEach(challenge => {
-      debug(`Found challenge: ${challenge.title} (${challenge.id})`);
+      log(`Found challenge: ${challenge.title} (${challenge.id})`);
     });
 
     const throwOnError = this.lang === 'english';
@@ -355,7 +414,7 @@ class BlockCreator {
     // Build the block object
     const blockResult = buildBlock(foundChallenges, meta);
 
-    debug(
+    log(
       `Completed block "${meta.name}" with ${blockResult.challenges.length} challenges (${blockResult.challenges.filter(c => !c.missing).length} built successfully)`
     );
 
@@ -363,20 +422,29 @@ class BlockCreator {
   }
 }
 
-class SuperblockCreator {
+export class SuperblockCreator {
   /**
    * @param {object} options - Options object
    * @param {BlockCreator} options.blockCreator - Instance of BlockCreator
    */
-  constructor({ blockCreator }) {
+
+  blockCreator: BlockCreator;
+
+  constructor(blockCreator: BlockCreator) {
     this.blockCreator = blockCreator;
   }
 
-  async processSuperblock({ blocks, name }) {
-    const superBlock = { blocks: {} };
+  async processSuperblock({
+    blocks,
+    name
+  }: {
+    blocks: BlockStructure[];
+    name: SuperBlocks;
+  }) {
+    const superBlock: { blocks: Record<string, unknown> } = { blocks: {} };
 
     for (let i = 0; i < blocks.length; i++) {
-      const block = blocks[i];
+      const block: BlockStructure = blocks[i]!;
       const blockResult = await this.blockCreator.processBlock(block, {
         superBlock: name,
         order: i
@@ -386,23 +454,32 @@ class SuperblockCreator {
       }
     }
 
-    debug(
+    log(
       `Completed parsing superblock. Total blocks: ${Object.keys(superBlock.blocks).length}`
     );
     return superBlock;
   }
 }
 
+export type BlockInfo = {
+  dashedName: string;
+  chapter?: string;
+  module?: string;
+};
+
 /**
  * Transforms superblock data to extract blocks array
  * @param {object} superblockData - The superblock data object
  * @returns {object[]} Array of block objects with dashedName, chapter, and module properties
  */
-function transformSuperBlock(
-  superblockData,
+export function transformSuperBlock(
+  superblockData: {
+    blocks?: string[];
+    chapters?: Chapter[];
+  },
   { showComingSoon } = { showComingSoon: false }
 ) {
-  let blocks = [];
+  let blocks: BlockInfo[] = [];
 
   // Handle simple blocks array format
   if (superblockData.blocks) {
@@ -442,17 +519,6 @@ function transformSuperBlock(
   }
 
   const blockNames = blocks.map(block => block.dashedName);
-  debug(`Found ${blocks.length} blocks: ${blockNames.join(', ')}`);
+  log(`Found ${blocks.length} blocks: ${blockNames.join(', ')}`);
   return blocks;
 }
-
-module.exports = {
-  SuperblockCreator,
-  BlockCreator,
-  addMetaToChallenge,
-  validateChallenges,
-  buildBlock,
-  finalizeChallenge,
-  transformSuperBlock,
-  fixChallengeProperties
-};
diff --git a/curriculum/src/file-handler.ts b/curriculum/src/file-handler.ts
new file mode 100644
index 00000000000..084989e3dc4
--- /dev/null
+++ b/curriculum/src/file-handler.ts
@@ -0,0 +1,276 @@
+import { dirname, resolve } from 'node:path';
+import assert from 'node:assert';
+import { existsSync, readFileSync } from 'node:fs';
+import { writeFile } from 'node:fs/promises';
+import { fileURLToPath } from 'node:url';
+import debug from 'debug';
+
+import type { Chapter } from '../../shared-dist/config/chapters.js';
+import type { SuperBlocks } from '../../shared-dist/config/curriculum.js';
+import type { Certification } from '../../shared-dist/config/certification-settings.js';
+
+const log = debug('fcc:file-handler');
+
+let __dirnameCompat: string;
+
+if (typeof __dirname !== 'undefined') {
+  // CJS
+  __dirnameCompat = __dirname;
+} else {
+  // ESM – wrap in Function so CJS parsers don't see it
+  const metaUrl = new Function('return import.meta.url')() as string;
+  __dirnameCompat = dirname(fileURLToPath(metaUrl));
+}
+
+const CURRICULUM_DIR = resolve(__dirnameCompat, '..');
+const I18N_CURRICULUM_DIR = resolve(
+  CURRICULUM_DIR,
+  'i18n-curriculum',
+  'curriculum'
+);
+const STRUCTURE_DIR = resolve(CURRICULUM_DIR, 'structure');
+const BLOCK_STRUCTURE_DIR = resolve(STRUCTURE_DIR, 'blocks');
+
+/**
+ * Gets language-specific configuration paths for curriculum content
+ * @param {string} lang - The language code (e.g., 'english', 'spanish', etc.)
+ * @param {Object} [options] - Optional configuration object with directory overrides
+ * @param {string} [options.baseDir] - Base directory for curriculum content (defaults to CURRICULUM_DIR)
+ * @param {string} [options.i18nBaseDir] - Base directory for i18n content (defaults to I18N_CURRICULUM_DIR)
+ * @param {string} [options.structureDir] - Directory for curriculum structure (defaults to STRUCTURE_DIR)
+ * @returns {Object} Object containing all relevant directory paths for the language
+ * @throws {AssertionError} When required i18n directories don't exist for non-English languages
+ */
+export function getContentConfig(
+  lang: string,
+  { baseDir, i18nBaseDir } = {
+    baseDir: CURRICULUM_DIR,
+    i18nBaseDir: I18N_CURRICULUM_DIR
+  }
+) {
+  const contentDir = resolve(baseDir, 'challenges', 'english');
+  const i18nContentDir = resolve(i18nBaseDir, 'challenges', lang);
+  const blockContentDir = resolve(contentDir, 'blocks');
+  const i18nBlockContentDir = resolve(i18nContentDir, 'blocks');
+  const dictionariesDir = resolve(baseDir, 'dictionaries');
+  const i18nDictionariesDir = resolve(i18nBaseDir, 'dictionaries');
+
+  if (lang !== 'english') {
+    assert(
+      existsSync(i18nContentDir),
+      `i18n content directory does not exist: ${i18nContentDir}`
+    );
+    assert(
+      existsSync(i18nBlockContentDir),
+      `i18n block content directory does not exist: ${i18nBlockContentDir}`
+    );
+    assert(
+      existsSync(i18nDictionariesDir),
+      `i18n dictionaries directory does not exist: ${i18nDictionariesDir}`
+    );
+  }
+
+  log(`Using content directory: ${contentDir}`);
+  log(`Using i18n content directory: ${i18nContentDir}`);
+  log(`Using block content directory: ${blockContentDir}`);
+  log(`Using i18n block content directory: ${i18nBlockContentDir}`);
+  log(`Using dictionaries directory: ${dictionariesDir}`);
+  log(`Using i18n dictionaries directory: ${i18nDictionariesDir}`);
+
+  return {
+    contentDir,
+    i18nContentDir,
+    blockContentDir,
+    i18nBlockContentDir,
+    dictionariesDir,
+    i18nDictionariesDir
+  };
+}
+
+/**
+ * Gets the appropriate content directory path for a given language
+ * @param {string} lang - The language code (e.g., 'english', 'spanish', etc.)
+ * @returns {string} Path to the content directory for the specified language
+ */
+export function getContentDir(lang: string) {
+  const { contentDir, i18nContentDir } = getContentConfig(lang);
+
+  return lang === 'english' ? contentDir : i18nContentDir;
+}
+
+export function getCurriculumStructure() {
+  const curriculumPath = resolve(STRUCTURE_DIR, 'curriculum.json');
+  if (!existsSync(curriculumPath)) {
+    throw new Error(`Curriculum file not found: ${curriculumPath}`);
+  }
+
+  return JSON.parse(readFileSync(curriculumPath, 'utf8')) as {
+    superblocks: SuperBlocks[];
+    certifications: string[];
+  };
+}
+
+export function getBlockStructurePath(block: string) {
+  return resolve(BLOCK_STRUCTURE_DIR, `${block}.json`);
+}
+
+export function getBlockStructureDir() {
+  return BLOCK_STRUCTURE_DIR;
+}
+
+export type ChallengeFile = {
+  contents: string;
+  ext: string;
+  name: string;
+};
+
+export type Challenge = {
+  id: string;
+  title: string;
+  // infer other properties:
+  description?: string;
+  instructions?: string;
+  questions?: string[];
+  block?: string;
+  blockType?: string;
+  blockLayout?: string;
+  hasEditableBoundaries?: boolean;
+  order?: number;
+  superBlock?: SuperBlocks;
+  superOrder?: number;
+  challengeOrder?: number;
+  isLastChallengeInBlock?: boolean;
+  required?: string[];
+  template?: string;
+  helpCategory?: string;
+  usesMultifileEditor?: boolean;
+  disableLoopProtectTests?: boolean;
+  disableLoopProtectPreview?: boolean;
+  chapter?: string;
+  module?: string;
+  certification?: Certification;
+  translationPending?: boolean;
+  missing?: boolean;
+  challengeFiles?: ChallengeFile[];
+  solutions?: ChallengeFile[][];
+};
+
+export interface BlockStructure {
+  name: string;
+  hasEditableBoundaries?: boolean;
+  required?: string[];
+  template?: string;
+  helpCategory?: string;
+  usesMultifileEditor?: boolean;
+  disableLoopProtectTests?: boolean;
+  disableLoopProtectPreview?: boolean;
+  blockLayout: string;
+  blockType: string;
+  challengeOrder: Challenge[];
+  dashedName: string;
+  isUpcomingChange?: boolean;
+  chapter?: string;
+  module?: string;
+}
+
+export function getBlockStructure(block: string) {
+  return JSON.parse(
+    readFileSync(getBlockStructurePath(block), 'utf8')
+  ) as BlockStructure;
+}
+
+export async function writeBlockStructure(block: string, structure: unknown) {
+  // dynamically importing prettier because Gatsby build and develop fail when
+  // it's required.
+  const prettier = await import('prettier');
+  const content = await prettier.format(JSON.stringify(structure), {
+    parser: 'json'
+  });
+  await writeFile(getBlockStructurePath(block), content, 'utf8');
+}
+
+export async function writeSuperblockStructure(
+  superblock: string,
+  structure: unknown
+) {
+  // dynamically importing prettier because Gatsby build and develop fail when
+  // it's required.
+  const prettier = await import('prettier');
+  const content = await prettier.format(JSON.stringify(structure), {
+    parser: 'json'
+  });
+  await writeFile(getSuperblockStructurePath(superblock), content);
+}
+
+export function getSuperblockStructure(superblockFilename: string) {
+  const superblockPath = getSuperblockStructurePath(superblockFilename);
+
+  if (!existsSync(superblockPath)) {
+    throw Error(`Superblock file not found: ${superblockPath}`);
+  }
+
+  return JSON.parse(readFileSync(superblockPath, 'utf8')) as {
+    blocks?: string[];
+    chapters?: Chapter[];
+  };
+}
+
+export function getSuperblockStructurePath(superblockFilename: string) {
+  return resolve(STRUCTURE_DIR, 'superblocks', `${superblockFilename}.json`);
+}
+
+/**
+ * Gets language-specific configuration paths for curriculum content
+ * @param {string} lang - The language code (e.g., 'english', 'spanish', etc.)
+ * @param {Object} [options] - Optional configuration object with directory overrides
+ * @param {string} [options.baseDir] - Base directory for curriculum content (defaults to CURRICULUM_DIR)
+ * @param {string} [options.i18nBaseDir] - Base directory for i18n content (defaults to I18N_CURRICULUM_DIR)
+ * @param {string} [options.structureDir] - Directory for curriculum structure (defaults to STRUCTURE_DIR)
+ * @returns {Object} Object containing all relevant directory paths for the language
+ * @throws {AssertionError} When required i18n directories don't exist for non-English languages
+ */
+export function getLanguageConfig(
+  lang: string,
+  { baseDir, i18nBaseDir } = {
+    baseDir: CURRICULUM_DIR,
+    i18nBaseDir: I18N_CURRICULUM_DIR
+  }
+) {
+  const contentDir = resolve(baseDir, 'challenges', 'english');
+  const i18nContentDir = resolve(i18nBaseDir, 'challenges', lang);
+  const blockContentDir = resolve(contentDir, 'blocks');
+  const i18nBlockContentDir = resolve(i18nContentDir, 'blocks');
+  const dictionariesDir = resolve(baseDir, 'dictionaries');
+  const i18nDictionariesDir = resolve(i18nBaseDir, 'dictionaries');
+
+  if (lang !== 'english') {
+    assert(
+      existsSync(i18nContentDir),
+      `i18n content directory does not exist: ${i18nContentDir}`
+    );
+    assert(
+      existsSync(i18nBlockContentDir),
+      `i18n block content directory does not exist: ${i18nBlockContentDir}`
+    );
+    assert(
+      existsSync(i18nDictionariesDir),
+      `i18n dictionaries directory does not exist: ${i18nDictionariesDir}`
+    );
+  }
+
+  log(`Using content directory: ${contentDir}`);
+  log(`Using i18n content directory: ${i18nContentDir}`);
+  log(`Using block content directory: ${blockContentDir}`);
+  log(`Using i18n block content directory: ${i18nBlockContentDir}`);
+  log(`Using dictionaries directory: ${dictionariesDir}`);
+  log(`Using i18n dictionaries directory: ${i18nDictionariesDir}`);
+
+  return {
+    contentDir,
+    i18nContentDir,
+    blockContentDir,
+    i18nBlockContentDir,
+    dictionariesDir,
+    i18nDictionariesDir
+  };
+}
diff --git a/curriculum/get-challenges.test.js b/curriculum/src/get-challenges.test.js
similarity index 97%
rename from curriculum/get-challenges.test.js
rename to curriculum/src/get-challenges.test.js
index 30eb6cdcca9..c92fd5b0cfb 100644
--- a/curriculum/get-challenges.test.js
+++ b/curriculum/src/get-challenges.test.js
@@ -5,7 +5,7 @@ import { hasEnglishSource, getChallengesForLang } from './get-challenges.js';
 const EXISTING_CHALLENGE_PATH = 'challenge.md';
 const MISSING_CHALLENGE_PATH = 'no/challenge.md';
 
-const basePath = '__fixtures__';
+const basePath = '../__fixtures__';
 
 describe('create non-English challenge', () => {
   describe('getChallengesForLang', () => {
diff --git a/curriculum/src/get-challenges.ts b/curriculum/src/get-challenges.ts
new file mode 100644
index 00000000000..e2d3c8452cb
--- /dev/null
+++ b/curriculum/src/get-challenges.ts
@@ -0,0 +1,36 @@
+import { access as _access, constants } from 'fs';
+import { resolve, join } from 'path';
+import { promisify } from 'util';
+
+import { availableLangs } from '../../shared-dist/config/i18n.js';
+import { buildCurriculum } from './build-curriculum.js';
+
+const { curriculum: curriculumLangs } = availableLangs;
+
+const access = promisify(_access);
+
+export async function getChallengesForLang(
+  lang: string,
+  filters?: {
+    superBlock?: string;
+    block?: string;
+    challengeId?: string;
+  }
+) {
+  const invalidLang = !curriculumLangs.includes(lang);
+  if (invalidLang)
+    throw Error(`${lang} is not an accepted language.
+Accepted languages are ${curriculumLangs.join(', ')}`);
+
+  return buildCurriculum(lang, filters);
+}
+
+export async function hasEnglishSource(
+  basePath: string,
+  translationPath: string
+) {
+  const englishRoot = resolve(__dirname, basePath, 'english');
+  return await access(join(englishRoot, translationPath), constants.F_OK)
+    .then(() => true)
+    .catch(() => false);
+}
diff --git a/curriculum/lint-localized.js b/curriculum/src/lint-localized.js
similarity index 82%
rename from curriculum/lint-localized.js
rename to curriculum/src/lint-localized.js
index f45d436154f..d32da7fd5e7 100644
--- a/curriculum/lint-localized.js
+++ b/curriculum/src/lint-localized.js
@@ -1,5 +1,5 @@
 var glob = require('glob');
-const lint = require('../tools/scripts/lint');
+const lint = require('../../tools/scripts/lint');
 const { testedLang } = require('./utils');
 
 glob(`challenges/${testedLang()}/**/*.md`, (err, files) => {
diff --git a/curriculum/src/reset.d.ts b/curriculum/src/reset.d.ts
new file mode 100644
index 00000000000..12bd3edc94a
--- /dev/null
+++ b/curriculum/src/reset.d.ts
@@ -0,0 +1 @@
+import '@total-typescript/ts-reset';
diff --git a/curriculum/test/daily-challenges.test.js b/curriculum/src/test/daily-challenges.test.js
similarity index 94%
rename from curriculum/test/daily-challenges.test.js
rename to curriculum/src/test/daily-challenges.test.js
index b763a604072..cae0763772d 100644
--- a/curriculum/test/daily-challenges.test.js
+++ b/curriculum/src/test/daily-challenges.test.js
@@ -1,10 +1,10 @@
 import { assert, describe, it, vi } from 'vitest';
-import { testedLang } from '../utils';
 
 vi.stubEnv('SHOW_UPCOMING_CHANGES', 'true');
 
-// We need to use dynamic import here to ensure the environment variable is set
+// We need to use dynamic imports here to ensure the environment variable is set
 // before the module is loaded.
+const { testedLang } = await import('../utils.js');
 const { getChallenges } = await import('./test-challenges.js');
 
 describe('Daily Coding Challenges', async () => {
diff --git a/curriculum/test/stubs/index.html b/curriculum/src/test/stubs/index.html
similarity index 100%
rename from curriculum/test/stubs/index.html
rename to curriculum/src/test/stubs/index.html
diff --git a/curriculum/test/test-challenges.js b/curriculum/src/test/test-challenges.js
similarity index 94%
rename from curriculum/test/test-challenges.js
rename to curriculum/src/test/test-challenges.js
index 0bd630c467a..22f1bda1c1f 100644
--- a/curriculum/test/test-challenges.js
+++ b/curriculum/src/test/test-challenges.js
@@ -1,5 +1,3 @@
-import { createRequire } from 'node:module';
-
 import { describe, it, beforeAll, expect } from 'vitest';
 import { assert, AssertionError } from 'chai';
 import jsdom from 'jsdom';
@@ -8,28 +6,26 @@ import lodash from 'lodash';
 import {
   buildChallenge,
   runnerTypes
-} from '../../client/src/templates/Challenges/utils/build';
+} from '../../../client/src/templates/Challenges/utils/build';
 import {
   challengeTypes,
   hasNoSolution
-} from '../../shared/config/challenge-types';
-import { getLines } from '../../shared/utils/get-lines';
-import { prefixDoctype } from '../../client/src/templates/Challenges/utils/frame';
+} from '../../../shared/config/challenge-types';
+import { getLines } from '../../../shared/utils/get-lines';
+import { prefixDoctype } from '../../../client/src/templates/Challenges/utils/frame';
 
-const require = createRequire(import.meta.url);
+import { getChallengesForLang } from '../get-challenges.js';
+import { challengeSchemaValidator } from '../../schema/challenge-schema.js';
+import { testedLang } from '../utils.js';
 
-const { getChallengesForLang } = require('../get-challenges');
-const { challengeSchemaValidator } = require('../schema/challenge-schema');
-const { testedLang } = require('../utils');
+import { curriculumSchemaValidator } from '../../schema/curriculum-schema.js';
+import { validateMetaSchema } from '../../schema/meta-schema.js';
+import { getBlockStructure } from '../file-handler.js';
+import ChallengeTitles from './utils/challenge-titles.js';
+import MongoIds from './utils/mongo-ids.js';
+import createPseudoWorker from './utils/pseudo-worker.js';
 
-const { curriculumSchemaValidator } = require('../schema/curriculum-schema');
-const { validateMetaSchema } = require('../schema/meta-schema');
-const { getBlockStructure } = require('../file-handler');
-const ChallengeTitles = require('./utils/challenge-titles');
-const MongoIds = require('./utils/mongo-ids');
-const createPseudoWorker = require('./utils/pseudo-worker');
-
-const { sortChallenges } = require('./utils/sort-challenges');
+import { sortChallenges } from './utils/sort-challenges.js';
 
 const { flatten, isEmpty, cloneDeep } = lodash;
 
diff --git a/curriculum/test/utils/challenge-titles.js b/curriculum/src/test/utils/challenge-titles.js
similarity index 100%
rename from curriculum/test/utils/challenge-titles.js
rename to curriculum/src/test/utils/challenge-titles.js
diff --git a/curriculum/test/utils/generate-block-tests.mjs b/curriculum/src/test/utils/generate-block-tests.ts
similarity index 73%
rename from curriculum/test/utils/generate-block-tests.mjs
rename to curriculum/src/test/utils/generate-block-tests.ts
index 60bb794cd15..6899d01ff46 100644
--- a/curriculum/test/utils/generate-block-tests.mjs
+++ b/curriculum/src/test/utils/generate-block-tests.ts
@@ -4,10 +4,19 @@ import path from 'node:path';
 import _ from 'lodash';
 
 import { parseCurriculumStructure } from '../../build-curriculum.js';
+import { Filter } from '../../utils.js';
 
-const __dirname = import.meta.dirname;
+let __dirnameCompat: string;
 
-const testFilter = {
+if (typeof __dirname !== 'undefined') {
+  // CJS
+  __dirnameCompat = __dirname;
+} else {
+  // ESM – wrap in Function so CJS parsers don't see it
+  __dirnameCompat = new Function('return import.meta.dirname')() as string;
+}
+
+const testFilter: Filter = {
   block: process.env.FCC_BLOCK ? process.env.FCC_BLOCK.trim() : undefined,
   challengeId: process.env.FCC_CHALLENGE_ID
     ? process.env.FCC_CHALLENGE_ID.trim()
@@ -17,7 +26,7 @@ const testFilter = {
     : undefined
 };
 
-const GENERATED_DIR = path.resolve(__dirname, '../blocks-generated');
+const GENERATED_DIR = path.resolve(__dirnameCompat, '../blocks-generated');
 
 async function main() {
   // clean and recreate directory
@@ -39,7 +48,7 @@ async function main() {
   console.log(`Generated ${blocks.length} block test file(s).`);
 }
 
-function generateSingleBlockFile(testFilter) {
+function generateSingleBlockFile(testFilter: Filter) {
   return `import { defineTestsForBlock } from '../test-challenges.js';
 
 await defineTestsForBlock(${JSON.stringify(testFilter)});
diff --git a/curriculum/test/utils/mongo-ids.js b/curriculum/src/test/utils/mongo-ids.js
similarity index 100%
rename from curriculum/test/utils/mongo-ids.js
rename to curriculum/src/test/utils/mongo-ids.js
diff --git a/curriculum/test/utils/pseudo-worker.js b/curriculum/src/test/utils/pseudo-worker.js
similarity index 100%
rename from curriculum/test/utils/pseudo-worker.js
rename to curriculum/src/test/utils/pseudo-worker.js
diff --git a/curriculum/test/utils/sort-challenges.js b/curriculum/src/test/utils/sort-challenges.js
similarity index 100%
rename from curriculum/test/utils/sort-challenges.js
rename to curriculum/src/test/utils/sort-challenges.js
diff --git a/curriculum/test/utils/sort-challenges.test.js b/curriculum/src/test/utils/sort-challenges.test.js
similarity index 98%
rename from curriculum/test/utils/sort-challenges.test.js
rename to curriculum/src/test/utils/sort-challenges.test.js
index 89d04fb2eb7..ab771e6173b 100644
--- a/curriculum/test/utils/sort-challenges.test.js
+++ b/curriculum/src/test/utils/sort-challenges.test.js
@@ -1,6 +1,6 @@
 import { describe, it, expect } from 'vitest';
 
-import { shuffleArray } from '../../../shared-dist/utils/shuffle-array.js';
+import { shuffleArray } from '../../../../shared-dist/utils/shuffle-array.js';
 import { sortChallenges } from './sort-challenges.js';
 
 const challenges = [
diff --git a/curriculum/test/vitest-global-setup.mjs b/curriculum/src/test/vitest-global-setup.mjs
similarity index 89%
rename from curriculum/test/vitest-global-setup.mjs
rename to curriculum/src/test/vitest-global-setup.mjs
index c461f9ffac9..adec32c4ea1 100644
--- a/curriculum/test/vitest-global-setup.mjs
+++ b/curriculum/src/test/vitest-global-setup.mjs
@@ -4,9 +4,9 @@ import sirv from 'sirv';
 import polka from 'polka';
 import puppeteer from 'puppeteer';
 
-import { helperVersion } from '../../client/src/templates/Challenges/utils/frame';
+import { helperVersion } from '../../../client/src/templates/Challenges/utils/frame';
 
-const clientPath = path.resolve(__dirname, '../../client');
+const clientPath = path.resolve(__dirname, '../../../client');
 
 async function createBrowser() {
   return puppeteer.launch({
diff --git a/curriculum/test/vitest-setup.mjs b/curriculum/src/test/vitest-setup.mjs
similarity index 100%
rename from curriculum/test/vitest-setup.mjs
rename to curriculum/src/test/vitest-setup.mjs
diff --git a/curriculum/test/vitest.config.mjs b/curriculum/src/test/vitest.config.mjs
similarity index 54%
rename from curriculum/test/vitest.config.mjs
rename to curriculum/src/test/vitest.config.mjs
index f689fdd2130..97988cea0d5 100644
--- a/curriculum/test/vitest.config.mjs
+++ b/curriculum/src/test/vitest.config.mjs
@@ -2,12 +2,12 @@ import { defineConfig } from 'vitest/config';
 
 export default defineConfig({
   test: {
-    include: ['test/blocks-generated/**/*.test.js'],
+    include: ['src/test/blocks-generated/**/*.test.js'],
     environment: 'node',
     hookTimeout: 60000,
     testTimeout: 30000,
     isolate: false,
-    globalSetup: 'test/vitest-global-setup.mjs',
-    setupFiles: 'test/vitest-setup.mjs'
+    globalSetup: 'src/test/vitest-global-setup.mjs',
+    setupFiles: 'src/test/vitest-setup.mjs'
   }
 });
diff --git a/curriculum/utils.test.ts b/curriculum/src/utils.test.ts
similarity index 91%
rename from curriculum/utils.test.ts
rename to curriculum/src/utils.test.ts
index 282335dbbf3..21671263067 100644
--- a/curriculum/utils.test.ts
+++ b/curriculum/src/utils.test.ts
@@ -2,7 +2,7 @@ import path from 'path';
 import { config } from 'dotenv';
 import { describe, it, expect } from 'vitest';
 
-import { SuperBlocks } from '../shared-dist/config/curriculum';
+import { SuperBlocks } from '../../shared-dist/config/curriculum';
 import {
   closestFilters,
   closestMatch,
@@ -11,7 +11,7 @@ import {
   filterByChallengeId,
   filterBySuperblock,
   getSuperOrder
-} from './utils';
+} from './utils.js';
 
 config({ path: path.resolve(__dirname, '../.env') });
 
@@ -65,12 +65,6 @@ describe('createSuperOrder', () => {
   it('should create the correct object given an array of SuperBlocks', () => {
     expect(superOrder).toStrictEqual(fullSuperOrder);
   });
-
-  it('throws when not given an array of SuperBlocks', () => {
-    expect(() => createSuperOrder()).toThrow();
-    expect(() => createSuperOrder(null)).toThrow();
-    expect(() => createSuperOrder('')).toThrow();
-  });
 });
 
 describe('getSuperOrder', () => {
@@ -79,8 +73,6 @@ describe('getSuperOrder', () => {
   });
 
   it('returns undefined for unknown curriculum', () => {
-    expect(getSuperOrder()).toBeUndefined();
-    expect(getSuperOrder(null)).toBeUndefined();
     expect(getSuperOrder('')).toBeUndefined();
     expect(getSuperOrder('respansive-wib-desoin')).toBeUndefined();
     expect(getSuperOrder('certifications')).toBeUndefined();
@@ -299,18 +291,21 @@ describe('filter utils', () => {
         {
           name: 'responsive-web-design',
           blocks: [
-            { dashedName: 'basic-html-and-html5' },
-            { dashedName: 'css-flexbox' }
+            { dashedName: 'basic-html-and-html5', challengeOrder: [] },
+            { dashedName: 'css-flexbox', challengeOrder: [] }
           ]
         },
         {
           name: 'javascript-algorithms-and-data-structures',
-          blocks: [{ dashedName: 'basic-javascript' }, { dashedName: 'es6' }]
+          blocks: [
+            { dashedName: 'basic-javascript', challengeOrder: [] },
+            { dashedName: 'es6', challengeOrder: [] }
+          ]
         }
       ];
 
       expect(
-        closestFilters({ superBlock: 'responsiv web design' }, superblocks)
+        closestFilters(superblocks, { superBlock: 'responsiv web design' })
       ).toEqual({ superBlock: 'responsive-web-design' });
     });
 
@@ -319,17 +314,20 @@ describe('filter utils', () => {
         {
           name: 'responsive-web-design',
           blocks: [
-            { dashedName: 'basic-html-and-html5' },
-            { dashedName: 'css-flexbox' }
+            { dashedName: 'basic-html-and-html5', challengeOrder: [] },
+            { dashedName: 'css-flexbox', challengeOrder: [] }
           ]
         },
         {
           name: 'javascript-algorithms-and-data-structures',
-          blocks: [{ dashedName: 'basic-javascript' }, { dashedName: 'es6' }]
+          blocks: [
+            { dashedName: 'basic-javascript', challengeOrder: [] },
+            { dashedName: 'es6', challengeOrder: [] }
+          ]
         }
       ];
 
-      expect(closestFilters({ block: 'basic-javascr' }, superblocks)).toEqual({
+      expect(closestFilters(superblocks, { block: 'basic-javascr' })).toEqual({
         block: 'basic-javascript'
       });
     });
diff --git a/curriculum/utils.js b/curriculum/src/utils.ts
similarity index 68%
rename from curriculum/utils.js
rename to curriculum/src/utils.ts
index 1d900de1add..6e2f4396938 100644
--- a/curriculum/utils.js
+++ b/curriculum/src/utils.ts
@@ -1,16 +1,18 @@
-const path = require('path');
+import { resolve } from 'path';
 
-const comparison = require('string-similarity');
+import comparison from 'string-similarity';
+import { config } from 'dotenv';
 
-const { generateSuperBlockList } = require('../shared-dist/config/curriculum');
+import { generateSuperBlockList } from '../../shared-dist/config/curriculum.js';
 
-require('dotenv').config({ path: path.resolve(__dirname, '../.env') });
+config({ path: resolve(__dirname, '../../.env') });
+
+import { availableLangs } from '../../shared-dist/config/i18n.js';
 
-const { availableLangs } = require('../shared-dist/config/i18n');
 const curriculumLangs = availableLangs.curriculum;
 
 // checks that the CURRICULUM_LOCALE exists and is an available language
-exports.testedLang = function testedLang() {
+export function testedLang() {
   if (process.env.CURRICULUM_LOCALE) {
     if (curriculumLangs.includes(process.env.CURRICULUM_LOCALE)) {
       return process.env.CURRICULUM_LOCALE;
@@ -21,10 +23,10 @@ exports.testedLang = function testedLang() {
   } else {
     throw Error('LOCALE must be set for testing');
   }
-};
+}
 
-function createSuperOrder(superBlocks) {
-  const superOrder = {};
+export function createSuperOrder(superBlocks: string[]) {
+  const superOrder: { [sb: string]: number } = {};
 
   superBlocks.forEach((superBlock, i) => {
     superOrder[superBlock] = i;
@@ -33,8 +35,8 @@ function createSuperOrder(superBlocks) {
   return superOrder;
 }
 
-function getSuperOrder(
-  superblock,
+export function getSuperOrder(
+  superblock: string,
   showUpcomingChanges = process.env.SHOW_UPCOMING_CHANGES === 'true'
 ) {
   const flatSuperBlockMap = generateSuperBlockList({
@@ -54,7 +56,10 @@ function getSuperOrder(
  * @param {string} [options.block] - The dashedName of the block to filter for (in kebab case).
  * @returns {Array<Object>} Array with one superblock containing the specified block, or the original array if block is not provided.
  */
-function filterByBlock(superblocks, { block } = {}) {
+export function filterByBlock<T extends { blocks: { dashedName: string }[] }>(
+  superblocks: T[],
+  { block }: { block?: string } = {}
+): T[] {
   if (!block) return superblocks;
 
   const superblock = superblocks
@@ -76,7 +81,10 @@ function filterByBlock(superblocks, { block } = {}) {
  * @param {string} [options.superBlock] - The name of the superblock to filter for.
  * @returns {Array<Object>} Filtered array of superblocks containing only the specified superblock, or the original array if superBlock is not provided.
  */
-function filterBySuperblock(superblocks, { superBlock } = {}) {
+export function filterBySuperblock<T extends { name: string }>(
+  superblocks: T[],
+  { superBlock }: { superBlock?: string } = {}
+): T[] {
   if (!superBlock) return superblocks;
   return superblocks.filter(({ name }) => name === superBlock);
 }
@@ -88,15 +96,20 @@ function filterBySuperblock(superblocks, { superBlock } = {}) {
  * @param {string} [options.challengeId] - The specific challenge id to filter for
  * @returns {Array<Object>} Filtered superblocks containing only the matching challenge
  */
-function filterByChallengeId(superblocks, { challengeId } = {}) {
+export function filterByChallengeId<
+  T extends { blocks: { challengeOrder: { id: string }[] }[] }
+>(superblocks: T[], { challengeId }: { challengeId?: string } = {}): T[] {
   if (!challengeId) {
     return superblocks;
   }
 
-  const findChallengeIndex = (challengeOrder, id) =>
+  const findChallengeIndex = (challengeOrder: { id: string }[], id: string) =>
     challengeOrder.findIndex(challenge => challenge.id === id);
 
-  const filterChallengeOrder = (challengeOrder, id) => {
+  const filterChallengeOrder = (
+    challengeOrder: { id: string }[],
+    id: string
+  ) => {
     const index = findChallengeIndex(challengeOrder, id);
     if (index === -1) return [];
 
@@ -121,20 +134,45 @@ function filterByChallengeId(superblocks, { challengeId } = {}) {
     .filter(superblock => superblock.blocks.length > 0);
 }
 
-const createFilterPipeline = filterFunctions => (data, filters) =>
-  filterFunctions.reduce((acc, filterFn) => filterFn(acc, filters), data);
+export interface Filter {
+  superBlock?: string;
+  block?: string;
+  challengeId?: string;
+}
 
-const applyFilters = createFilterPipeline([
+interface Filterable {
+  name: string;
+  blocks: {
+    challengeOrder: { id: string }[];
+    dashedName: string;
+  }[];
+}
+
+interface GenericFilterFunction {
+  <T extends Filterable>(data: T[], filters?: Filter): T[];
+}
+
+function createFilterPipeline<T extends Filterable>(
+  filterFunctions: GenericFilterFunction[]
+): (data: T[], filters?: Filter) => T[] {
+  return (data: T[], filters?: Filter) =>
+    filterFunctions.reduce((acc, filterFn) => filterFn(acc, filters), data);
+}
+
+export const applyFilters: GenericFilterFunction = createFilterPipeline([
   filterBySuperblock,
   filterByBlock,
   filterByChallengeId
 ]);
 
-function closestMatch(target, xs) {
+export function closestMatch(target: string, xs: string[]): string {
   return comparison.findBestMatch(target.toLowerCase(), xs).bestMatch.target;
 }
 
-function closestFilters(target, superblocks) {
+export function closestFilters(
+  superblocks: Filterable[],
+  target?: Filter
+): Filter | undefined {
   if (target?.superBlock) {
     const superblockNames = superblocks.map(({ name }) => name);
     return {
@@ -155,12 +193,3 @@ function closestFilters(target, superblocks) {
 
   return target;
 }
-
-exports.closestFilters = closestFilters;
-exports.closestMatch = closestMatch;
-exports.createSuperOrder = createSuperOrder;
-exports.filterByBlock = filterByBlock;
-exports.filterBySuperblock = filterBySuperblock;
-exports.filterByChallengeId = filterByChallengeId;
-exports.getSuperOrder = getSuperOrder;
-exports.applyFilters = applyFilters;
diff --git a/curriculum/tsconfig.json b/curriculum/tsconfig.json
new file mode 100644
index 00000000000..427752c7a97
--- /dev/null
+++ b/curriculum/tsconfig.json
@@ -0,0 +1,17 @@
+{
+  "references": [{ "path": "../shared/tsconfig.json" }],
+  "compilerOptions": {
+    "rootDir": "./src",
+    "outDir": "./dist",
+    "declaration": true,
+    "target": "es2022",
+    "module": "nodenext",
+    "strict": true,
+    "forceConsistentCasingInFileNames": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "noEmit": false,
+    "noUncheckedIndexedAccess": true,
+    "skipLibCheck": true // vitest cannot import cjs. The options are 1) migrate to esm, 2) don't type check tests and 3) skip lib checks
+  }
+}
diff --git a/curriculum/vitest.config.mjs b/curriculum/vitest.config.mjs
index b270042c180..9439a0f82b9 100644
--- a/curriculum/vitest.config.mjs
+++ b/curriculum/vitest.config.mjs
@@ -2,6 +2,6 @@ import { defineConfig } from 'vitest/config';
 
 export default defineConfig({
   test: {
-    exclude: ['test/blocks-generated/**/*.test.js']
+    exclude: ['src/test/blocks-generated/**/*.test.js', 'dist']
   }
 });
diff --git a/docker/api/Dockerfile b/docker/api/Dockerfile
index f1095ff6f39..60eab7c98af 100644
--- a/docker/api/Dockerfile
+++ b/docker/api/Dockerfile
@@ -27,7 +27,7 @@ RUN cd api && pnpm prisma generate
 ARG SHOW_UPCOMING_CHANGES=false
 ENV SHOW_UPCOMING_CHANGES=$SHOW_UPCOMING_CHANGES
 
-RUN pnpm create:shared
+RUN pnpm compile:ts
 RUN pnpm build:curriculum
 RUN pnpm -F=api build
 
@@ -52,7 +52,7 @@ USER node
 WORKDIR /home/node/fcc
 COPY --from=builder --chown=node:node /home/node/build/api/dist/ ./
 COPY --from=builder --chown=node:node /home/node/build/api/package.json api/
-COPY --from=builder --chown=node:node /home/node/build/shared/config/curriculum.json shared/config/
+COPY --from=builder --chown=node:node /home/node/build/shared-dist/config/curriculum.json shared-dist/config/
 
 COPY --from=deps --chown=node:node /home/node/build/node_modules/ node_modules/
 COPY --from=deps --chown=node:node /home/node/build/api/node_modules/ api/node_modules/
diff --git a/eslint.config.mjs b/eslint.config.mjs
index 2b05a8ec071..9b0132b165b 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -33,10 +33,12 @@ export default tseslint.config(
       'client/.cache/**/*',
       'client/public/**/*',
       'shared/**/*.js',
+      'shared/**/*.d.ts',
       'docs/**/*.md',
       '**/playwright*.config.ts',
       'playwright/**/*',
-      'shared-dist/**/*'
+      'shared-dist/**/*',
+      'curriculum/dist/**/*'
     ]
   },
   js.configs.recommended,
diff --git a/knip.jsonc b/knip.jsonc
index 23973d70dbc..56bf643cd4b 100644
--- a/knip.jsonc
+++ b/knip.jsonc
@@ -1,6 +1,6 @@
 {
   "$schema": "https://cdn.jsdelivr.net/npm/knip@5/schema.json",
-  "ignoreBinaries": ["create:shared", "install-puppeteer", "pm2"],
+  "ignoreBinaries": ["compile:ts", "install-puppeteer", "pm2"],
   "workspaces": {
     ".": {
       "playwright": ["playwright.config.ts"],
diff --git a/package.json b/package.json
index e83b2a1cf1d..6ff1e93056e 100644
--- a/package.json
+++ b/package.json
@@ -19,9 +19,9 @@
   "author": "freeCodeCamp <team@freecodecamp.org>",
   "main": "none",
   "scripts": {
-    "audit-challenges": "pnpm run create:shared && tsx tools/challenge-auditor/index.ts",
+    "audit-challenges": "pnpm run compile:ts && tsx tools/challenge-auditor/index.ts",
     "analyze-bundle": "webpack-bundle-analyzer",
-    "prebuild": "npm-run-all create:shared",
+    "prebuild": "npm-run-all compile:ts",
     "build": "npm-run-all -p build:*",
     "build-workers": "cd ./client && pnpm run prebuild",
     "build:client": "cd ./client && pnpm run build",
@@ -34,13 +34,13 @@
     "clean-and-develop": "pnpm run clean && pnpm install && pnpm run develop",
     "clean:api": "cd api && pnpm clean",
     "clean:client": "cd ./client && pnpm run clean",
-    "clean:curriculum": "rm -rf ./shared/config/curriculum.json",
+    "clean:curriculum": "rm -rf ./shared-dist/config/curriculum.json",
     "clean:packages": "find . -name 'node_modules' -type d -prune -exec rm -rf '{}' +",
-    "create:shared": "tsc -p shared",
+    "compile:ts": "tsc --build --clean curriculum && tsc --build curriculum",
     "create-new-project": "cd ./tools/challenge-helper-scripts/ && pnpm run create-project",
     "create-new-language-block": "cd ./tools/challenge-helper-scripts/ && pnpm run create-language-block",
     "create-new-quiz": "cd ./tools/challenge-helper-scripts/ && pnpm run create-quiz",
-    "predevelop": "npm-run-all -p create:shared -s build:curriculum",
+    "predevelop": "npm-run-all -p compile:ts -s build:curriculum",
     "develop": "npm-run-all -p develop:*",
     "develop:client": "cd ./client && pnpm run develop",
     "develop:api": "cd ./api && pnpm run develop",
@@ -51,13 +51,13 @@
     "knip": "npx -y knip@5 --include files",
     "knip:all": "npx -y knip@5 ",
     "prelint": "pnpm run -F=client predevelop",
-    "lint": "NODE_OPTIONS=\"--max-old-space-size=7168\" npm-run-all create:shared -p lint:*",
+    "lint": "NODE_OPTIONS=\"--max-old-space-size=7168\" npm-run-all compile:ts -p lint:*",
     "lint:challenges": "cd ./curriculum && pnpm run lint",
     "lint:js": "eslint --cache --max-warnings 0 .",
-    "lint:ts": "tsc && tsc -p shared && tsc -p api && tsc -p client",
+    "lint:ts": "tsc && tsc -p shared && tsc -p api && tsc -p client && tsc -p curriculum",
     "lint:prettier": "prettier --list-different .",
     "lint:css": "stylelint '**/*.css'",
-    "preseed": "npm-run-all create:shared",
+    "preseed": "npm-run-all compile:ts",
     "playwright:install-build-tools": "npx playwright install --with-deps",
     "rename-challenges": "tsx tools/challenge-helper-scripts/rename-challenge-files.ts",
     "seed": "pnpm seed:surveys && pnpm seed:exams && DEBUG=fcc:* node ./tools/scripts/seed/seed-demo-user",
@@ -69,8 +69,8 @@
     "seed:ms-username": "DEBUG=fcc:* node ./tools/scripts/seed/seed-ms-username",
     "serve:client": "cd ./client && pnpm run serve",
     "serve:client-ci": "cd ./client && pnpm run serve-ci",
-    "start": "npm-run-all create:shared -p develop:server serve:client",
-    "test": "NODE_OPTIONS='--max-old-space-size=7168' run-s create:shared build:curriculum build-workers test:**",
+    "start": "npm-run-all compile:ts -p develop:server serve:client",
+    "test": "NODE_OPTIONS='--max-old-space-size=7168' run-s compile:ts build:curriculum build-workers test:**",
     "test:api": "cd api && pnpm test",
     "test:tools:challenge-helper-scripts": "cd ./tools/challenge-helper-scripts && pnpm test run",
     "test:tools:scripts-build": "cd ./tools/scripts/build && pnpm test run",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 22bccafa36f..09b011de58f 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -712,6 +712,15 @@ importers:
       '@babel/register':
         specifier: 7.23.7
         version: 7.23.7(@babel/core@7.23.7)
+      '@total-typescript/ts-reset':
+        specifier: ^0.6.1
+        version: 0.6.1
+      '@types/debug':
+        specifier: ^4.1.12
+        version: 4.1.12
+      '@types/js-yaml':
+        specifier: 4.0.5
+        version: 4.0.5
       '@types/polka':
         specifier: ^0.5.7
         version: 0.5.7
@@ -4434,6 +4443,9 @@ packages:
   '@total-typescript/ts-reset@0.5.1':
     resolution: {integrity: sha512-AqlrT8YA1o7Ff5wPfMOL0pvL+1X+sw60NN6CcOCqs658emD6RfiXhF7Gu9QcfKBH7ELY2nInLhKSCWVoNL70MQ==}
 
+  '@total-typescript/ts-reset@0.6.1':
+    resolution: {integrity: sha512-cka47fVSo6lfQDIATYqb/vO1nvFfbPw7uWLayIXIhGETj0wcOOlrlkobOMDNQOFr9QOafegUPq13V2+6vtD7yg==}
+
   '@trysound/sax@0.2.0':
     resolution: {integrity: sha512-L7z9BgrNEcYyUYtF+HaEfiS5ebkh9jXqbszz7pC0hRBPaatV0XjSD3+eHrpqFemQfgwiFF0QPIarnIihIDn7OA==}
     engines: {node: '>=10.13.0'}
@@ -4515,6 +4527,9 @@ packages:
   '@types/debug@0.0.30':
     resolution: {integrity: sha512-orGL5LXERPYsLov6CWs3Fh6203+dXzJkR7OnddIr2514Hsecwc8xRpzCapshBbKFImCsvS/mk6+FWiN5LyZJAQ==}
 
+  '@types/debug@4.1.12':
+    resolution: {integrity: sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ==}
+
   '@types/debug@4.1.9':
     resolution: {integrity: sha512-8Hz50m2eoS56ldRlepxSBa6PWEVCtzUo/92HgLc2qTMnotJNIm7xP+UZhyWoYsyOdd5dxZ+NZLb24rsKyFs2ow==}
 
@@ -19127,6 +19142,8 @@ snapshots:
 
   '@total-typescript/ts-reset@0.5.1': {}
 
+  '@total-typescript/ts-reset@0.6.1': {}
+
   '@trysound/sax@0.2.0': {}
 
   '@turist/fetch@7.2.0(node-fetch@2.7.0)':
@@ -19231,6 +19248,10 @@ snapshots:
 
   '@types/debug@0.0.30': {}
 
+  '@types/debug@4.1.12':
+    dependencies:
+      '@types/ms': 0.7.32
+
   '@types/debug@4.1.9':
     dependencies:
       '@types/ms': 0.7.32
@@ -26857,7 +26878,7 @@ snapshots:
 
   micromark@3.2.0:
     dependencies:
-      '@types/debug': 4.1.9
+      '@types/debug': 4.1.12
       debug: 4.3.4(supports-color@8.1.1)
       decode-named-character-reference: 1.0.2
       micromark-core-commonmark: 1.1.0
@@ -31148,6 +31169,7 @@ snapshots:
       vite-node: 3.2.4(@types/node@20.12.8)(jiti@2.6.1)(terser@5.28.1)(tsx@4.19.1)(yaml@2.8.0)
       why-is-node-running: 2.3.0
     optionalDependencies:
+      '@types/debug': 4.1.12
       '@types/node': 20.12.8
       '@vitest/ui': 3.2.4(vitest@3.2.4)
       jsdom: 16.7.0
@@ -31191,6 +31213,7 @@ snapshots:
       vite-node: 3.2.4(@types/node@20.12.8)(jiti@2.6.1)(terser@5.28.1)(tsx@4.19.1)(yaml@2.8.0)
       why-is-node-running: 2.3.0
     optionalDependencies:
+      '@types/debug': 4.1.12
       '@types/node': 20.12.8
       '@vitest/ui': 3.2.4(vitest@3.2.4)
       jsdom: 26.1.0
@@ -31234,6 +31257,7 @@ snapshots:
       vite-node: 3.2.4(@types/node@20.12.8)(jiti@2.6.1)(terser@5.28.1)(tsx@4.19.1)(yaml@2.8.0)
       why-is-node-running: 2.3.0
     optionalDependencies:
+      '@types/debug': 4.1.12
       '@types/node': 20.12.8
       '@vitest/ui': 3.2.4(vitest@3.2.4)
       jsdom: 26.1.0
@@ -31277,6 +31301,7 @@ snapshots:
       vite-node: 3.2.4(@types/node@20.12.8)(jiti@2.6.1)(terser@5.28.1)(tsx@4.19.1)(yaml@2.8.0)
       why-is-node-running: 2.3.0
     optionalDependencies:
+      '@types/debug': 4.1.12
       '@types/node': 20.12.8
       '@vitest/ui': 3.2.4(vitest@3.2.4)
       jsdom: 26.1.0
diff --git a/shared/config/certification-settings.ts b/shared/config/certification-settings.ts
index b2efc7a151a..99293e9ad51 100644
--- a/shared/config/certification-settings.ts
+++ b/shared/config/certification-settings.ts
@@ -47,6 +47,10 @@ export enum Certification {
   LegacyFullStack = 'full-stack'
 }
 
+export function isCertification(x: string): x is Certification {
+  return Object.values(Certification).includes(x as Certification);
+}
+
 // "Current" certifications are the subset of standard certifications that are
 // live and not legacy.
 export const currentCertifications = [
diff --git a/shared/tsconfig.json b/shared/tsconfig.json
index 058aabd062b..d1c72a2c785 100644
--- a/shared/tsconfig.json
+++ b/shared/tsconfig.json
@@ -3,7 +3,7 @@
   "extends": "../tsconfig-base.json",
   "compilerOptions": {
     "outDir": "../shared-dist",
-    "declaration": true,
+    "composite": true,
     "noEmit": false,
     "module": "CommonJS"
   }
diff --git a/tools/challenge-auditor/index.ts b/tools/challenge-auditor/index.ts
index 2c5569e6c25..7b5dfac4818 100644
--- a/tools/challenge-auditor/index.ts
+++ b/tools/challenge-auditor/index.ts
@@ -8,7 +8,7 @@ const envPath = resolve(__dirname, '../../.env');
 config({ path: envPath });
 
 import { availableLangs } from '../../shared/config/i18n';
-import { getChallengesForLang } from '../../curriculum/get-challenges';
+import { getChallengesForLang } from '../../curriculum/src/get-challenges';
 import {
   SuperBlocks,
   getAuditedSuperBlocks
diff --git a/tools/challenge-helper-scripts/create-language-block.ts b/tools/challenge-helper-scripts/create-language-block.ts
index 58e780a6013..50ebf9bbd59 100644
--- a/tools/challenge-helper-scripts/create-language-block.ts
+++ b/tools/challenge-helper-scripts/create-language-block.ts
@@ -15,8 +15,8 @@ import {
   getContentConfig,
   writeBlockStructure,
   getSuperblockStructure
-} from '../../curriculum/file-handler';
-import { superBlockToFilename } from '../../curriculum/build-curriculum';
+} from '../../curriculum/src/file-handler';
+import { superBlockToFilename } from '../../curriculum/src/build-curriculum';
 import { getBaseMeta } from './helpers/get-base-meta';
 import { createIntroMD } from './helpers/create-intro';
 import {
diff --git a/tools/challenge-helper-scripts/create-project.ts b/tools/challenge-helper-scripts/create-project.ts
index d431d8aca51..5fa30a66deb 100644
--- a/tools/challenge-helper-scripts/create-project.ts
+++ b/tools/challenge-helper-scripts/create-project.ts
@@ -13,8 +13,8 @@ import { BlockLayouts, BlockTypes } from '../../shared/config/blocks';
 import {
   getContentConfig,
   writeBlockStructure
-} from '../../curriculum/file-handler';
-import { superBlockToFilename } from '../../curriculum/build-curriculum';
+} from '../../curriculum/src/file-handler';
+import { superBlockToFilename } from '../../curriculum/src/build-curriculum';
 import {
   createQuizFile,
   createStepFile,
diff --git a/tools/challenge-helper-scripts/create-quiz.ts b/tools/challenge-helper-scripts/create-quiz.ts
index d140b6bb34a..1eeff584e0d 100644
--- a/tools/challenge-helper-scripts/create-quiz.ts
+++ b/tools/challenge-helper-scripts/create-quiz.ts
@@ -8,8 +8,8 @@ import { SuperBlocks } from '../../shared/config/curriculum';
 import {
   getContentConfig,
   writeBlockStructure
-} from '../../curriculum/file-handler';
-import { superBlockToFilename } from '../../curriculum/build-curriculum';
+} from '../../curriculum/src/file-handler';
+import { superBlockToFilename } from '../../curriculum/src/build-curriculum';
 import { createQuizFile, getAllBlocks, validateBlockName } from './utils';
 import { getBaseMeta } from './helpers/get-base-meta';
 import { createIntroMD } from './helpers/create-intro';
diff --git a/tools/challenge-helper-scripts/create-this-challenge.ts b/tools/challenge-helper-scripts/create-this-challenge.ts
index d90cdca71fe..53d631b2256 100644
--- a/tools/challenge-helper-scripts/create-this-challenge.ts
+++ b/tools/challenge-helper-scripts/create-this-challenge.ts
@@ -11,7 +11,7 @@ import ObjectID from 'bson-objectid';
 import {
   getBlockStructure,
   writeBlockStructure
-} from '../../curriculum/file-handler';
+} from '../../curriculum/src/file-handler';
 import { createChallengeFile } from './utils';
 import { getProjectPath } from './helpers/get-project-info';
 import { getBlock, type Meta } from './helpers/project-metadata';
diff --git a/tools/challenge-helper-scripts/helpers/create-project.test.ts b/tools/challenge-helper-scripts/helpers/create-project.test.ts
index f2941e39725..b19d7a1d699 100644
--- a/tools/challenge-helper-scripts/helpers/create-project.test.ts
+++ b/tools/challenge-helper-scripts/helpers/create-project.test.ts
@@ -2,13 +2,13 @@ import { describe, it, expect, beforeEach, vi } from 'vitest';
 import {
   getSuperblockStructure,
   writeSuperblockStructure
-} from '../../../curriculum/file-handler';
+} from '../../../curriculum/src/file-handler';
 import {
   updateChapterModuleSuperblockStructure,
   updateSimpleSuperblockStructure
 } from './create-project';
 
-vi.mock('../../../curriculum/file-handler');
+vi.mock('../../../curriculum/src/file-handler');
 
 const mockGetSuperblockStructure = vi.mocked(getSuperblockStructure);
 const mockWriteSuperblockStructure = vi.mocked(writeSuperblockStructure);
diff --git a/tools/challenge-helper-scripts/helpers/create-project.ts b/tools/challenge-helper-scripts/helpers/create-project.ts
index 05f36624077..e98bd79d66d 100644
--- a/tools/challenge-helper-scripts/helpers/create-project.ts
+++ b/tools/challenge-helper-scripts/helpers/create-project.ts
@@ -3,7 +3,7 @@
 import {
   getSuperblockStructure,
   writeSuperblockStructure
-} from '../../../curriculum/file-handler';
+} from '../../../curriculum/src/file-handler';
 import { insertInto } from './utils';
 
 export async function updateSimpleSuperblockStructure(
diff --git a/tools/challenge-helper-scripts/helpers/project-metadata.test.ts b/tools/challenge-helper-scripts/helpers/project-metadata.test.ts
index 7f8fd9f3a9a..4d3d7ee87e8 100644
--- a/tools/challenge-helper-scripts/helpers/project-metadata.test.ts
+++ b/tools/challenge-helper-scripts/helpers/project-metadata.test.ts
@@ -1,9 +1,9 @@
 import { join } from 'path';
 import { describe, it, expect, vi } from 'vitest';
-import { getBlockStructure } from '../../../curriculum/file-handler';
+import { getBlockStructure } from '../../../curriculum/src/file-handler';
 import { getMetaData } from './project-metadata';
 
-vi.mock('../../../curriculum/file-handler');
+vi.mock('../../../curriculum/src/file-handler');
 
 const commonPath = join('curriculum', 'challenges', 'blocks');
 const block = 'block-name';
diff --git a/tools/challenge-helper-scripts/helpers/project-metadata.ts b/tools/challenge-helper-scripts/helpers/project-metadata.ts
index 41e8fb7b5d9..84fcd786349 100644
--- a/tools/challenge-helper-scripts/helpers/project-metadata.ts
+++ b/tools/challenge-helper-scripts/helpers/project-metadata.ts
@@ -2,7 +2,7 @@ import path from 'path';
 import {
   getBlockStructure,
   writeBlockStructure
-} from '../../../curriculum/file-handler';
+} from '../../../curriculum/src/file-handler';
 import { getProjectPath } from './get-project-info';
 
 export type Meta = {
diff --git a/tools/challenge-helper-scripts/utils.ts b/tools/challenge-helper-scripts/utils.ts
index e5f418d2c83..4474ec33e6e 100644
--- a/tools/challenge-helper-scripts/utils.ts
+++ b/tools/challenge-helper-scripts/utils.ts
@@ -5,7 +5,7 @@ import matter from 'gray-matter';
 import { uniq } from 'lodash';
 
 import { challengeTypes } from '../../shared/config/challenge-types';
-import { parseCurriculumStructure } from '../../curriculum/build-curriculum';
+import { parseCurriculumStructure } from '../../curriculum/src/build-curriculum';
 import { parseMDSync } from '../challenge-parser/parser';
 import { getMetaData, updateMetaData } from './helpers/project-metadata';
 import { getProjectPath } from './helpers/get-project-info';
diff --git a/tools/challenge-parser/parser/index.d.ts b/tools/challenge-parser/parser/index.d.ts
new file mode 100644
index 00000000000..d81405dcc97
--- /dev/null
+++ b/tools/challenge-parser/parser/index.d.ts
@@ -0,0 +1,40 @@
+// TypeScript declaration file for challenge-parser/parser
+// This module exports functions to parse challenge markdown files
+
+type ChallengeFile = {
+  name: string;
+  contents: string;
+  ext: string;
+  editableRegionBoundaries: number[];
+  head?: string;
+  tail?: string;
+};
+export interface ParsedChallenge {
+  id: string;
+  title: string;
+  challengeType: number;
+  description?: string;
+  instructions?: string;
+  questions?: string[];
+  challengeFiles?: ChallengeFile[];
+  solutions?: {
+    contents: string;
+    ext: string;
+    name: string;
+  }[][];
+  [key: string]: unknown; // Allow for additional properties that may be added by plugins
+}
+
+/**
+ * Parses a markdown challenge file asynchronously
+ * @param filename - Path to the markdown file to parse
+ * @returns Promise that resolves to the parsed challenge data
+ */
+export function parseMD(filename: string): Promise<ParsedChallenge>;
+
+/**
+ * Parses a markdown challenge file synchronously
+ * @param filename - Path to the markdown file to parse
+ * @returns The parsed challenge data
+ */
+export function parseMDSync(filename: string): ParsedChallenge;
diff --git a/tools/challenge-parser/translation-parser/index.d.ts b/tools/challenge-parser/translation-parser/index.d.ts
new file mode 100644
index 00000000000..10173c978df
--- /dev/null
+++ b/tools/challenge-parser/translation-parser/index.d.ts
@@ -0,0 +1,40 @@
+export interface ChallengeFile {
+  contents: string;
+  ext: string;
+  name: string;
+}
+
+export interface Challenge {
+  id: string;
+  title: string;
+  challengeFiles?: ChallengeFile[];
+  [key: string]: unknown;
+}
+
+export interface CommentDictionary {
+  [comment: string]: {
+    [lang: string]: string;
+  };
+}
+
+export function translateComments(
+  text: string,
+  lang: string,
+  dict: CommentDictionary,
+  codeLang: string
+): { text: string };
+
+export function translateCommentsInChallenge(
+  challenge: Challenge,
+  lang: string,
+  dict: CommentDictionary
+): Challenge;
+
+export function translateGeneric(
+  input: { text: string },
+  config: {
+    knownComments: string[];
+    dict: CommentDictionary;
+    lang: string;
+  }
+): { text: string };
diff --git a/tools/challenge-parser/translation-parser/index.js b/tools/challenge-parser/translation-parser/index.js
index f5ed617f7cc..cdb8e2219de 100644
--- a/tools/challenge-parser/translation-parser/index.js
+++ b/tools/challenge-parser/translation-parser/index.js
@@ -20,7 +20,9 @@ exports.translateCommentsInChallenge = (challenge, lang, dict) => {
   if (challClone?.challengeFiles) {
     challClone.challengeFiles.forEach(challengeFile => {
       if (challengeFile.contents) {
-        let { text } = this.translateComments(
+        // It cannot be this.translateComments because 'this' does not exist
+        // when imported into an ES module.
+        let { text } = exports.translateComments(
           challengeFile.contents,
           lang,
           dict,
diff --git a/tools/client-plugins/gatsby-source-challenges/gatsby-node.js b/tools/client-plugins/gatsby-source-challenges/gatsby-node.js
index 99658762a57..5b4b80f2306 100644
--- a/tools/client-plugins/gatsby-source-challenges/gatsby-node.js
+++ b/tools/client-plugins/gatsby-source-challenges/gatsby-node.js
@@ -1,8 +1,10 @@
 const chokidar = require('chokidar');
-const { getSuperblockStructure } = require('../../../curriculum/file-handler');
+const {
+  getSuperblockStructure
+} = require('../../../curriculum/dist/file-handler');
 const {
   superBlockToFilename
-} = require('../../../curriculum/build-curriculum');
+} = require('../../../curriculum/dist/build-curriculum');
 
 const { createChallengeNode } = require('./create-challenge-nodes');
 
diff --git a/tools/scripts/build/build-curriculum.ts b/tools/scripts/build/build-curriculum.ts
index 7a7c8f94136..56321009e6e 100644
--- a/tools/scripts/build/build-curriculum.ts
+++ b/tools/scripts/build/build-curriculum.ts
@@ -1,7 +1,7 @@
 import fs from 'fs';
 import path from 'path';
 
-import { getChallengesForLang } from '../../../curriculum/get-challenges';
+import { getChallengesForLang } from '../../../curriculum/src/get-challenges';
 import {
   buildExtCurriculumDataV1,
   type Curriculum as CurriculumV1,
@@ -13,7 +13,7 @@ import {
   type CurriculumProps as CurriculumPropsV2
 } from './build-external-curricula-data-v2';
 
-const globalConfigPath = path.resolve(__dirname, '../../../shared/config');
+const globalConfigPath = path.resolve(__dirname, '../../../shared-dist/config');
 
 // We are defaulting to English because the ids for the challenges are same
 // across all languages.
diff --git a/tools/scripts/build/build-external-curricula-data-v2.ts b/tools/scripts/build/build-external-curricula-data-v2.ts
index 66f83b21b5a..98fd7ce97cd 100644
--- a/tools/scripts/build/build-external-curricula-data-v2.ts
+++ b/tools/scripts/build/build-external-curricula-data-v2.ts
@@ -5,7 +5,7 @@ import { submitTypes } from '../../../shared-dist/config/challenge-types';
 import { type ChallengeNode } from '../../../client/src/redux/prop-types';
 import { SuperBlocks } from '../../../shared-dist/config/curriculum';
 import type { Chapter } from '../../../shared-dist/config/chapters';
-import { getSuperblockStructure } from '../../../curriculum/build-curriculum';
+import { getSuperblockStructure } from '../../../curriculum/src/file-handler';
 
 export type CurriculumIntros =
   | BlockBasedCurriculumIntros