diff --git a/build.ts b/build.ts
new file mode 100644
index 0000000..9adf48e
--- /dev/null
+++ b/build.ts
@@ -0,0 +1,5 @@
+await Bun.build({
+  entrypoints: ['./src/cli.ts'],
+  outdir: './dist',
+  target: 'node',
+});
\ No newline at end of file
diff --git a/bun.lockb b/bun.lockb
new file mode 100755
index 0000000..b145f6c
Binary files /dev/null and b/bun.lockb differ
diff --git a/package.json b/package.json
index fd248ea..7ebf628 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
     "dist"
   ],
   "scripts": {
-    "build": "rm -rf dist && mkdir dist && cp src/*.js dist/",
+    "build": "rm -rf dist && bun run build.ts",
     "test": "echo \"No tests specified\" && exit 0",
     "prepublishOnly": "npm run build",
     "dev": "npx .",
@@ -31,6 +31,10 @@
     "@eslint/js": "^9.14.0",
     "eslint": "^9.14.0",
     "globals": "^15.12.0",
-    "prettier": "^3.3.3"
+    "prettier": "^3.3.3",
+    "bun": "latest",
+    "@types/bun": "latest",
+    "@types/node": "^22.9.1",
+    "@types/micromatch": "^4.0.9"
   }
 }
diff --git a/src/MarkdownGenerator.js b/src/MarkdownGenerator.ts
similarity index 65%
rename from src/MarkdownGenerator.js
rename to src/MarkdownGenerator.ts
index e29a106..53f7292 100644
--- a/src/MarkdownGenerator.js
+++ b/src/MarkdownGenerator.ts
@@ -1,4 +1,4 @@
-// MarkdownGenerator.js
+// MarkdownGenerator.ts
 
 import path from 'path';
 import { execSync } from 'child_process';
@@ -6,17 +6,18 @@ import { readFile, writeFile } from 'fs/promises';
 import llama3Tokenizer from 'llama3-tokenizer-js';
 import { TokenCleaner } from './TokenCleaner.js';
 import micromatch from 'micromatch';
+import fileTypeExclusions from './fileTypeExclusions.js';
+import fileExclusions from './fileExclusions.js';
 
-/**
- * @typedef {Object} MarkdownGeneratorOptions
- * @property {string} [dir='.'] - The directory to process files from
- * @property {string} [outputFilePath='./prompt.md'] - Path where the output markdown file will be saved
- * @property {Set<string>} [fileTypeExclusions] - Set of file extensions to exclude
- * @property {string[]} [fileExclusions] - Array of specific files or patterns to exclude
- * @property {Object} [customPatterns] - Custom patterns for token cleaning
- * @property {Object} [customSecretPatterns] - Custom patterns for identifying and redacting secrets
- * @property {boolean} [verbose=true] - Whether to log detailed information during processing
- */
+interface MarkdownGeneratorOptions {
+  dir?: string;
+  outputFilePath?: string;
+  fileTypeExclusions?: Set<string>;
+  fileExclusions?: string[];
+  customPatterns?: Record<string, any>;
+  customSecretPatterns?: Record<string, any>;
+  verbose?: boolean;
+}
 
 /**
  * @class MarkdownGenerator
@@ -24,148 +25,26 @@ import micromatch from 'micromatch';
  * It can exclude specific file types and files, clean tokens, and include todo lists.
  */
 export class MarkdownGenerator {
+  private dir: string;
+  private outputFilePath: string;
+  private fileTypeExclusions: Set<string>;
+  private fileExclusions: string[];
+  private tokenCleaner: TokenCleaner;
+  private verbose: boolean;
+
   /**
    * Creates an instance of MarkdownGenerator.
    * @param {MarkdownGeneratorOptions} [options={}] - Configuration options for the generator
    */
-  constructor(options = {}) {
+  constructor(options: MarkdownGeneratorOptions = {}) {
     this.dir = options.dir || '.';
     this.outputFilePath = options.outputFilePath || './prompt.md';
 
     this.fileTypeExclusions = new Set(
-      options.fileTypeExclusions || [
-        // Images
-        '.jpg',
-        '.jpeg',
-        '.png',
-        '.gif',
-        '.bmp',
-        '.svg',
-        '.webp',
-        '.tiff',
-        '.ico',
-
-        // Fonts
-        '.ttf',
-        '.woff',
-        '.woff2',
-        '.eot',
-        '.otf',
-
-        // Lock files
-        '.lock',
-        '.lockb',
-
-        // Config files
-        '.yaml',
-        '.yml',
-        '.toml',
-        '.conf',
-
-        // Binary and compiled
-        '.exe',
-        '.dll',
-        '.so',
-        '.dylib',
-        '.bin',
-        '.dat',
-        '.pyc',
-        '.pyo',
-        '.class',
-        '.jar',
-
-        // Archives
-        '.zip',
-        '.tar',
-        '.gz',
-        '.rar',
-        '.7z',
-
-        // Media
-        '.mp3',
-        '.mp4',
-        '.avi',
-        '.mov',
-        '.wav',
-
-        // Database
-        '.db',
-        '.sqlite',
-        '.sqlite3'
-      ]
+      options.fileTypeExclusions || fileTypeExclusions,
     );
 
-    this.fileExclusions = options.fileExclusions || [
-      // Config patterns
-      '**/.*rc',
-      '**/.*rc.{js,json,yaml,yml}',
-      '**/*.config.{js,ts}',
-      '**/tsconfig.json',
-      '**/tsconfig*.json',
-      '**/jsconfig.json',
-      '**/jsconfig*.json',
-      '**/package-lock.json',
-      '**/.prettierignore',
-      // Environment and variables
-      '**/.env*',
-      '**/*.vars',
-      '**/secrets.*',
-
-      // Version control
-      '**/.git*',
-      '**/.hg*',
-      '**/.svn*',
-      '**/CVS',
-      '**/.github/',
-
-      // CI/CD
-      '**/.gitlab-ci.yml',
-      '**/azure-pipelines.yml',
-      '**/jenkins*',
-
-      // Dependency directories
-      '**/node_modules/',
-      '**/target/',
-      '**/__pycache__/',
-      '**/venv/',
-      '**/.venv/',
-      '**/env/',
-      '**/build/',
-      '**/dist/',
-      '**/out/',
-      '**/bin/',
-      '**/obj/',
-
-      // Documentation
-      '**/README*',
-      '**/CHANGELOG*',
-      '**/CONTRIBUTING*',
-      '**/LICENSE*',
-      '**/docs/',
-      '**/documentation/',
-
-      // IDE and editors
-      '**/.{idea,vscode,eclipse,settings,zed,cursor}/',
-      '**/.project',
-      '**/.classpath',
-      '**/.factorypath',
-
-      // Test and data
-      '**/test{s,}/',
-      '**/spec/',
-      '**/fixtures/',
-      '**/testdata/',
-      '**/__tests__/',
-      '**/*.{test,spec}.*',
-      '**/coverage/',
-      '**/jest.config.*',
-
-      // Logs and temporary files
-      '**/logs/',
-      '**/tmp/',
-      '**/temp/',
-      '**/*.log'
-    ];
+    this.fileExclusions = options.fileExclusions || fileExclusions;
 
     this.tokenCleaner = new TokenCleaner(options.customPatterns, options.customSecretPatterns);
     this.verbose = options.verbose !== undefined ? options.verbose : true;
@@ -177,7 +56,7 @@ export class MarkdownGenerator {
    * @returns {Promise<string[]>} Array of tracked file paths that aren't excluded
    * @throws {Error} When unable to execute git command or access files
    */
-  async getTrackedFiles() {
+  async getTrackedFiles(): Promise<string[]> {
     try {
       const output = this.execCommand('git ls-files');
       const trackedFiles = output.split('\n').filter(file => file.trim().length > 0);
@@ -210,7 +89,7 @@ export class MarkdownGenerator {
    * @returns {Promise<string>} Cleaned and redacted content of the file
    * @throws {Error} When unable to read or process the file
    */
-  async readFileContent(filePath) {
+  async readFileContent(filePath: string): Promise<string> {
     try {
       const content = await readFile(filePath, 'utf-8');
       const cleanedAndRedactedContent = this.tokenCleaner.cleanAndRedact(content);
@@ -233,7 +112,7 @@ export class MarkdownGenerator {
    * @returns {Promise<string>} Generated markdown content containing all processed files
    * @throws {Error} When unable to generate markdown content
    */
-  async generateMarkdown() {
+  async generateMarkdown(): Promise<string> {
     const trackedFiles = await this.getTrackedFiles();
     if (this.verbose) {
       console.log(`Generating markdown for ${trackedFiles.length} files`);
@@ -258,18 +137,18 @@ export class MarkdownGenerator {
    * @returns {Promise<string>} Content of the todo file
    * @throws {Error} When unable to read or create the todo file
    */
-  async getTodo() {
+  async getTodo(): Promise<string> {
     const todoPath = path.join(this.dir, 'todo');
     try {
       if (this.verbose) {
         console.log('Reading todo file');
       }
       return await readFile(todoPath, 'utf-8');
-    } catch (error) {
+    } catch (error: any) {
       if (error.code === 'ENOENT') {
         // File does not exist
         if (this.verbose) {
-          console.log("File not found, creating a new 'todo' file.");
+          console.log('File not found, creating a new \'todo\' file.');
         }
         await writeFile(todoPath, ''); // Create an empty 'todo' file
         return await this.getTodo(); // Await the recursive call
@@ -290,7 +169,7 @@ export class MarkdownGenerator {
    * @returns {Error} [result.error] - Error object if operation failed
    * @throws {Error} When unable to create or write the markdown document
    */
-  async createMarkdownDocument() {
+  async createMarkdownDocument(): Promise<{ success: boolean, tokenCount?: number, error?: Error }> {
     try {
       const codeMarkdown = await this.generateMarkdown();
       const todos = await this.getTodo();
@@ -317,7 +196,7 @@ export class MarkdownGenerator {
    * @throws {Error} When command execution fails
    * @private
    */
-  execCommand(command) {
+  private execCommand(command: string): string {
     try {
       return execSync(command, { cwd: this.dir, encoding: 'utf-8' }).toString().trim();
     } catch (error) {
@@ -327,4 +206,4 @@ export class MarkdownGenerator {
       throw error;
     }
   }
-}
+}
\ No newline at end of file
diff --git a/src/TokenCleaner.js b/src/TokenCleaner.ts
similarity index 83%
rename from src/TokenCleaner.js
rename to src/TokenCleaner.ts
index 88a6205..c4eb9eb 100644
--- a/src/TokenCleaner.js
+++ b/src/TokenCleaner.ts
@@ -1,5 +1,11 @@
 export class TokenCleaner {
-  constructor(customPatterns = [], customSecretPatterns = []) {
+  patterns: { regex: RegExp; replacement: string }[];
+  secretPatterns: { regex: RegExp; replacement: string }[];
+
+  constructor(customPatterns: { regex: RegExp; replacement: string }[] = [], customSecretPatterns: {
+    regex: RegExp;
+    replacement: string
+  }[] = []) {
     this.patterns = [
       { regex: /\/\/.*$/gm, replacement: '' },
       { regex: /\/\*[\s\S]*?\*\//gm, replacement: '' },
@@ -40,22 +46,22 @@ export class TokenCleaner {
     ];
   }
 
-  clean(code) {
+  clean(code: string): string {
     return this.patterns.reduce(
       (cleanCode, pattern) => cleanCode.replace(pattern.regex, pattern.replacement),
       code,
     );
   }
 
-  redactSecrets(code) {
+  redactSecrets(code: string): string {
     return this.secretPatterns.reduce(
       (redactedCode, pattern) => redactedCode.replace(pattern.regex, pattern.replacement),
       code,
     );
   }
 
-  cleanAndRedact(code) {
+  cleanAndRedact(code: string): string {
     const cleanedCode = this.clean(code);
     return this.redactSecrets(cleanedCode);
   }
-}
+}
\ No newline at end of file
diff --git a/src/cli.js b/src/cli.ts
old mode 100755
new mode 100644
similarity index 71%
rename from src/cli.js
rename to src/cli.ts
index de1bb05..4446bfb
--- a/src/cli.js
+++ b/src/cli.ts
@@ -1,16 +1,16 @@
 #!/usr/bin/env node
-console.log("RUNNING TOKENIZER")
+console.log('RUNNING TOKENIZER');
 import { MarkdownGenerator } from './MarkdownGenerator.js';
 
 const generator = new MarkdownGenerator();
 generator
   .createMarkdownDocument()
-  .then(result => {
+  .then((result: { success: boolean }) => {
     if (!result.success) {
       process.exit(1);
     }
   })
-  .catch(error => {
+  .catch((error: any) => {
     console.error('Error:', error);
     process.exit(1);
-  });
+  });
\ No newline at end of file
diff --git a/src/fileExclusions.ts b/src/fileExclusions.ts
new file mode 100644
index 0000000..0e8b006
--- /dev/null
+++ b/src/fileExclusions.ts
@@ -0,0 +1,71 @@
+export default [
+  // Config patterns
+  '**/.*rc',
+  '**/.*rc.{js,json,yaml,yml}',
+  '**/*.config.{js,ts}',
+  '**/tsconfig.json',
+  '**/tsconfig*.json',
+  '**/jsconfig.json',
+  '**/jsconfig*.json',
+  '**/package-lock.json',
+  '**/.prettierignore',
+  // Environment and variables
+  '**/.env*',
+  '**/*.vars',
+  '**/secrets.*',
+
+  // Version control
+  '**/.git*',
+  '**/.hg*',
+  '**/.svn*',
+  '**/CVS',
+  '**/.github/',
+
+  // CI/CD
+  '**/.gitlab-ci.yml',
+  '**/azure-pipelines.yml',
+  '**/jenkins*',
+
+  // Dependency directories
+  '**/node_modules/',
+  '**/target/',
+  '**/__pycache__/',
+  '**/venv/',
+  '**/.venv/',
+  '**/env/',
+  '**/build/',
+  '**/dist/',
+  '**/out/',
+  '**/bin/',
+  '**/obj/',
+
+  // Documentation
+  '**/README*',
+  '**/CHANGELOG*',
+  '**/CONTRIBUTING*',
+  '**/LICENSE*',
+  '**/docs/',
+  '**/documentation/',
+
+  // IDE and editors
+  '**/.{idea,vscode,eclipse,settings,zed,cursor}/',
+  '**/.project',
+  '**/.classpath',
+  '**/.factorypath',
+
+  // Test and data
+  '**/test{s,}/',
+  '**/spec/',
+  '**/fixtures/',
+  '**/testdata/',
+  '**/__tests__/',
+  '**/*.{test,spec}.*',
+  '**/coverage/',
+  '**/jest.config.*',
+
+  // Logs and temporary files
+  '**/logs/',
+  '**/tmp/',
+  '**/temp/',
+  '**/*.log'
+]
\ No newline at end of file
diff --git a/src/fileTypeExclusions.ts b/src/fileTypeExclusions.ts
new file mode 100644
index 0000000..b1d3ba0
--- /dev/null
+++ b/src/fileTypeExclusions.ts
@@ -0,0 +1,60 @@
+export default [
+  // Images
+  '.jpg',
+  '.jpeg',
+  '.png',
+  '.gif',
+  '.bmp',
+  '.svg',
+  '.webp',
+  '.tiff',
+  '.ico',
+
+  // Fonts
+  '.ttf',
+  '.woff',
+  '.woff2',
+  '.eot',
+  '.otf',
+
+  // Lock files
+  '.lock',
+  '.lockb',
+
+  // Config files
+  '.yaml',
+  '.yml',
+  '.toml',
+  '.conf',
+
+  // Binary and compiled
+  '.exe',
+  '.dll',
+  '.so',
+  '.dylib',
+  '.bin',
+  '.dat',
+  '.pyc',
+  '.pyo',
+  '.class',
+  '.jar',
+
+  // Archives
+  '.zip',
+  '.tar',
+  '.gz',
+  '.rar',
+  '.7z',
+
+  // Media
+  '.mp3',
+  '.mp4',
+  '.avi',
+  '.mov',
+  '.wav',
+
+  // Database
+  '.db',
+  '.sqlite',
+  '.sqlite3'
+]
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
deleted file mode 100644
index f4237ff..0000000
--- a/src/index.js
+++ /dev/null
@@ -1,2 +0,0 @@
-export { TokenCleaner } from './TokenCleaner.js';
-export { MarkdownGenerator } from './MarkdownGenerator.js';
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..3675345
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,2 @@
+export { TokenCleaner } from './TokenCleaner';
+export { MarkdownGenerator } from './MarkdownGenerator';
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..fcbc19a
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,28 @@
+{
+  "compilerOptions": {
+    // Enable latest features
+    "lib": ["ESNext", "DOM"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "verbatimModuleSyntax": true,
+    "noEmit": true,
+    t
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false
+  }
+}