diff --git a/.gitignore b/.gitignore
index 0f66536c..69df09ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,6 @@
 /node_modules/
 cypress/screenshots
 cypress/videos
+tmp/
+lib/
+build/
diff --git a/package-lock.json b/package-lock.json
index d9f975f9..399cab6e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,7 @@
             },
             "devDependencies": {
                 "@discoveryjs/cli": "^2.8.0",
+                "@discoveryjs/scan-fs": "^4.0.0",
                 "cypress": "^13.3.0",
                 "esbuild": "~0.23.0",
                 "eslint": "^8.50.0",
@@ -184,6 +185,16 @@
                 "node": "^10 || ^12.20.0 || ^14.13.0 || >=15.0.0"
             }
         },
+        "node_modules/@discoveryjs/scan-fs": {
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/@discoveryjs/scan-fs/-/scan-fs-4.0.0.tgz",
+            "integrity": "sha512-+dT8eeygTmbobGkUKA58mjhmJdXvXOyCnIybzOKnPF0XUTLskej71kmYk6FJFOlIIv8NAQSrCPioSwWkjngO0w==",
+            "dev": true,
+            "license": "MIT",
+            "engines": {
+                "node": "^12.20.0 || ^14.13.0 || >=15.0.0"
+            }
+        },
         "node_modules/@esbuild/aix-ppc64": {
             "version": "0.23.0",
             "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.23.0.tgz",
@@ -4492,6 +4503,12 @@
             "resolved": "https://registry.npmjs.org/@discoveryjs/natural-compare/-/natural-compare-1.1.0.tgz",
             "integrity": "sha512-yuctPJs5lRXoI8LkpVZGAV6n+DKOuEsfpfcIDQ8ZjWHwazqk1QjBc4jMlof0UlZHyUqv4dwsOTooMiAmtzvwXA=="
         },
+        "@discoveryjs/scan-fs": {
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/@discoveryjs/scan-fs/-/scan-fs-4.0.0.tgz",
+            "integrity": "sha512-+dT8eeygTmbobGkUKA58mjhmJdXvXOyCnIybzOKnPF0XUTLskej71kmYk6FJFOlIIv8NAQSrCPioSwWkjngO0w==",
+            "dev": true
+        },
         "@esbuild/aix-ppc64": {
             "version": "0.23.0",
             "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.23.0.tgz",
diff --git a/package.json b/package.json
index 1444ad8e..84de8403 100644
--- a/package.json
+++ b/package.json
@@ -7,22 +7,30 @@
     "repository": "discoveryjs/discovery",
     "keywords": [],
     "type": "module",
-    "main": "src/lib.js",
+    "main": "lib/lib.js",
     "unpkg": "dist/discovery.js",
     "jsdelivr": "dist/discovery.js",
+    "typings": "./lib/lib.d.ts",
+    "exports": {
+        "./dist/*": "./dist/*",
+        "./lib/*": "./lib/*",
+        "./src/*": "./lib/*",
+        "./package.json": "./package.json"
+    },
     "scripts": {
         "lint": "eslint cypress models src",
         "typecheck": "tsc --noEmit",
+        "emit:types": "tsc --emitDeclarationOnly",
         "build": "npm run build:js && npm run build:css && npm run build:preloader && npm run build:embed-host",
-        "build:js": "esbuild src/lib.js --outfile=dist/discovery.js --bundle --define:global=window --format=esm --minify --sourcemap=external",
+        "build:js": "esbuild src/lib.ts --outfile=dist/discovery.js --bundle --define:global=window --format=esm --minify --sourcemap=external",
         "build:css": "esbuild src/lib.css --outfile=dist/discovery.css --bundle --minify --loader:.svg=dataurl",
         "build:embed-host": "esbuild src/extensions/embed-host.js --outfile=dist/discovery-embed-host.js --bundle --define:global=window --format=esm --minify --sourcemap=external",
         "build:preloader": "npm run build:preloader:js && npm run build:preloader:css",
         "build:preloader:js": "esbuild src/preloader.js --outfile=dist/discovery-preloader.js --bundle --define:global=window --format=esm --minify --sourcemap=external",
         "build:preloader:css": "esbuild src/preloader.css --outfile=dist/discovery-preloader.css --bundle --minify --loader:.svg=dataurl",
         "build-gh-pages": "discovery-build -o .gh-pages --clean",
-        "prepublishOnly": "node scripts/bake-version.cjs && npm run build",
-        "postpublish": "node scripts/bake-version.cjs --rollback",
+        "transpile": "node scripts/transpile.js",
+        "prepublishOnly": "npm run transpile && npm run build",
         "cypress": "npx cypress open",
         "cypress:server": "discovery -c ./cypress/fixtures/single-model/.discoveryrc.cjs -p 8124",
         "start": "discovery -c models/index.cjs",
@@ -40,6 +48,7 @@
     },
     "devDependencies": {
         "@discoveryjs/cli": "^2.8.0",
+        "@discoveryjs/scan-fs": "^4.0.0",
         "cypress": "^13.3.0",
         "esbuild": "~0.23.0",
         "eslint": "^8.50.0",
@@ -48,6 +57,6 @@
     },
     "files": [
         "dist",
-        "src"
+        "lib"
     ]
 }
diff --git a/scripts/bake-version.cjs b/scripts/bake-version.cjs
deleted file mode 100644
index 74be5dfe..00000000
--- a/scripts/bake-version.cjs
+++ /dev/null
@@ -1,7 +0,0 @@
-const { writeFileSync } = require('fs');
-
-const content = process.argv[2] === '--rollback'
-    ? 'export { version } from \'../package.json\';\n'
-    : `export const version = ${JSON.stringify(require('../package.json').version)};\n`;
-
-writeFileSync('./src/version.js', content);
diff --git a/scripts/transpile.js b/scripts/transpile.js
new file mode 100644
index 00000000..5fc547ee
--- /dev/null
+++ b/scripts/transpile.js
@@ -0,0 +1,53 @@
+import { scanFs } from '@discoveryjs/scan-fs';
+import path from 'node:path';
+import fs from 'node:fs';
+import { execSync } from 'child_process';
+import esbuild from 'esbuild';
+
+const srcpath = resolvePath('../src');
+const dstpath = resolvePath('../lib');
+
+function resolvePath(p) {
+    return new URL(p, import.meta.url).pathname;
+}
+
+export async function compile() {
+    const startTime = Date.now();
+
+    for (const file of (await scanFs(srcpath)).files) {
+        const srcAbsPath = path.join(srcpath, file.path);
+        let dstAbsPath = path.join(dstpath, file.path);
+
+        if (path.extname(srcAbsPath) === '.ts') {
+            // ignore .ts files when .js file exists
+            if (fs.existsSync(srcAbsPath.replace(/\.ts$/, '.js'))) {
+                continue;
+            }
+
+            const { code } = await esbuild.transform(fs.readFileSync(srcAbsPath), {
+                loader: 'ts'
+            });
+
+            dstAbsPath = dstAbsPath.replace(/\.ts$/, '.js');
+            await fs.promises.mkdir(path.dirname(dstAbsPath), { recursive: true });
+            await fs.promises.writeFile(dstAbsPath, code);
+        } else if (path.basename(srcAbsPath) === 'version.js') {
+            await fs.promises.mkdir(path.dirname(dstAbsPath), { recursive: true });
+            await fs.promises.writeFile(dstAbsPath, `export const version = "${JSON.parse(fs.readFileSync(resolvePath('../package.json'))).version}";\n`);
+        } else {
+            await fs.promises.mkdir(path.dirname(dstAbsPath), { recursive: true });
+            await fs.promises.copyFile(srcAbsPath, dstAbsPath);
+        }
+    }
+
+    try {
+        execSync('npm run emit:types', {
+            cwd: resolvePath('..'),
+            stdio: 'inherit'
+        });
+    } catch {}
+
+    console.log(`Compiled in ${Date.now() - startTime} ms`);
+}
+
+compile();