diff --git a/src/migrate.js b/src/migrate.js
new file mode 100644
index 0000000..8d20f03
--- /dev/null
+++ b/src/migrate.js
@@ -0,0 +1,49 @@
+import MIGRATIONS_TABLE from './migrations_table.sql?raw';
+export class MigrationManager {
+    constructor(database) {
+        Object.defineProperty(this, "database", {
+            enumerable: true,
+            configurable: true,
+            writable: true,
+            value: database
+        });
+    }
+    async migrate(migrations) {
+        await this.init();
+        try {
+            await this.database.exec('BEGIN TRANSACTION');
+            for (const migration of migrations) {
+                await this.migrateOne(migration);
+            }
+            await this.database.exec('COMMIT');
+        }
+        catch (error) {
+            await this.database.exec('ROLLBACK');
+            throw error;
+        }
+    }
+    async init() {
+        await this.database.exec(MIGRATIONS_TABLE);
+    }
+    async migrateOne(migration) {
+        const hashValue = await hash(migration.script);
+        const [row] = await this.database.exec('SELECT hash FROM migrations WHERE name = ?', [
+            migration.name
+        ]);
+        if (row && row.hash !== hashValue) {
+            throw new Error(`Migration ${migration.name} has been modified`);
+        }
+        if (!row) {
+            await this.database.exec(migration.script);
+            await this.database.exec('INSERT INTO migrations (name, hash) VALUES (?, ?)', [
+                migration.name,
+                hashValue
+            ]);
+        }
+    }
+}
+async function hash(input) {
+    const hashBuffer = await crypto.subtle.digest('SHA-256', new TextEncoder().encode(input));
+    const hashArray = Array.from(new Uint8Array(hashBuffer));
+    return hashArray.map((b) => b.toString(16).padStart(2, '0')).join('');
+}
diff --git a/tsconfig.json b/tsconfig.json
index 97c3dc1..11d7937 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -5,13 +5,15 @@
     "module": "ESNext",
     "lib": ["ES2020", "DOM", "DOM.Iterable"],
     "skipLibCheck": true,
+    "declaration": true,
+    "emitDeclarationOnly": true,
+    "outDir": "./dist",
 
     /* Bundler mode */
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
     "isolatedModules": true,
     "moduleDetection": "force",
-    "noEmit": true,
 
     /* Linting */
     "strict": true,
@@ -19,8 +21,7 @@
     "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
     "noUncheckedSideEffectImports": true,
-
-    "types": ["vite/client"]
+    "types": ["vite/client"],
   },
   "include": ["src/migrate.ts"]
 }