diff --git a/package-lock.json b/package-lock.json
index 6619858..33e0f71 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,7 @@
       "dependencies": {
         "apollo-server-express": "^3.13.0",
         "graphql": "^15.3.0",
+        "reflect-metadata": "^0.1.13",
         "type-graphql": "^1.1.1"
       },
       "devDependencies": {
@@ -40,6 +41,7 @@
         "ts-node": "^10.9.1",
         "tsc": "^2.0.4",
         "tsc-watch": "^6.0.4",
+        "tsconfig-paths": "^4.2.0",
         "typescript": "^5.3.2"
       }
     },
@@ -2961,6 +2963,18 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/eslint-plugin-import/node_modules/json5": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.2.tgz",
+      "integrity": "sha512-g1MWMLBiz8FKi1e4w0UyVL3w+iJceWAFBAaBnnGKOpNa5f8TLktkbre1+s6oICydWAm+HRUGTmI+//xv2hvXYA==",
+      "dev": true,
+      "dependencies": {
+        "minimist": "^1.2.0"
+      },
+      "bin": {
+        "json5": "lib/cli.js"
+      }
+    },
     "node_modules/eslint-plugin-import/node_modules/ms": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -2976,6 +2990,18 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/eslint-plugin-import/node_modules/tsconfig-paths": {
+      "version": "3.14.2",
+      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.14.2.tgz",
+      "integrity": "sha512-o/9iXgCYc5L/JxCHPe3Hvh8Q/2xm5Z+p18PESBU6Ff33695QnCHBEjcytY2q19ua7Mbl/DavtBOLq+oG0RCL+g==",
+      "dev": true,
+      "dependencies": {
+        "@types/json5": "^0.0.29",
+        "json5": "^1.0.2",
+        "minimist": "^1.2.6",
+        "strip-bom": "^3.0.0"
+      }
+    },
     "node_modules/eslint-plugin-json": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/eslint-plugin-json/-/eslint-plugin-json-3.1.0.tgz",
@@ -4473,15 +4499,15 @@
       "dev": true
     },
     "node_modules/json5": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.2.tgz",
-      "integrity": "sha512-g1MWMLBiz8FKi1e4w0UyVL3w+iJceWAFBAaBnnGKOpNa5f8TLktkbre1+s6oICydWAm+HRUGTmI+//xv2hvXYA==",
+      "version": "2.2.3",
+      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.3.tgz",
+      "integrity": "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==",
       "dev": true,
-      "dependencies": {
-        "minimist": "^1.2.0"
-      },
       "bin": {
         "json5": "lib/cli.js"
+      },
+      "engines": {
+        "node": ">=6"
       }
     },
     "node_modules/jsonc-parser": {
@@ -6950,6 +6976,11 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/reflect-metadata": {
+      "version": "0.1.13",
+      "resolved": "https://registry.npmjs.org/reflect-metadata/-/reflect-metadata-0.1.13.tgz",
+      "integrity": "sha512-Ts1Y/anZELhSsjMcU605fU9RE4Oi3p5ORujwbIKXfWa+0Zxs510Qrmrce5/Jowq3cHSZSJqBjypxmHarc+vEWg=="
+    },
     "node_modules/regexp-tree": {
       "version": "0.1.27",
       "resolved": "https://registry.npmjs.org/regexp-tree/-/regexp-tree-0.1.27.tgz",
@@ -12756,15 +12787,17 @@
       }
     },
     "node_modules/tsconfig-paths": {
-      "version": "3.14.2",
-      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-3.14.2.tgz",
-      "integrity": "sha512-o/9iXgCYc5L/JxCHPe3Hvh8Q/2xm5Z+p18PESBU6Ff33695QnCHBEjcytY2q19ua7Mbl/DavtBOLq+oG0RCL+g==",
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/tsconfig-paths/-/tsconfig-paths-4.2.0.tgz",
+      "integrity": "sha512-NoZ4roiN7LnbKn9QqE1amc9DJfzvZXxF4xDavcOWt1BPkdx+m+0gJuPM+S0vCe7zTJMYUP0R8pO2XMr+Y8oLIg==",
       "dev": true,
       "dependencies": {
-        "@types/json5": "^0.0.29",
-        "json5": "^1.0.2",
+        "json5": "^2.2.2",
         "minimist": "^1.2.6",
         "strip-bom": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=6"
       }
     },
     "node_modules/tslib": {
@@ -13009,18 +13042,6 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
-    "node_modules/unified-args/node_modules/json5": {
-      "version": "2.2.3",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-2.2.3.tgz",
-      "integrity": "sha512-XmOWe7eyHYH14cLdVPoyg+GOH3rYX++KpzrylJwSW98t3Nk+U8XOl8FWKOgwtzdb8lXGf6zYwDUzeHMWfxasyg==",
-      "dev": true,
-      "bin": {
-        "json5": "lib/cli.js"
-      },
-      "engines": {
-        "node": ">=6"
-      }
-    },
     "node_modules/unified-args/node_modules/strip-ansi": {
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.0.tgz",
diff --git a/package.json b/package.json
index 16d35c2..8d0fd8c 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "boilerplate-backend",
   "version": "1.0.0",
   "description": "The IT4C Boilerplate for backends",
-  "main": "build/index.ts",
+  "main": "build/index.js",
   "type": "module",
   "repository": {
     "type": "git",
@@ -25,6 +25,7 @@
   "dependencies": {
     "apollo-server-express": "^3.13.0",
     "graphql": "^15.3.0",
+    "reflect-metadata": "^0.1.13",
     "type-graphql": "^1.1.1"
   },
   "devDependencies": {
@@ -54,6 +55,7 @@
     "ts-node": "^10.9.1",
     "tsc": "^2.0.4",
     "tsc-watch": "^6.0.4",
+    "tsconfig-paths": "^4.2.0",
     "typescript": "^5.3.2"
   },
   "imports": {
diff --git a/src/graphql/schema.ts b/src/graphql/schema.ts
index 315a489..df2d0bb 100644
--- a/src/graphql/schema.ts
+++ b/src/graphql/schema.ts
@@ -1,11 +1,15 @@
 import path from 'path'
+import { fileURLToPath } from 'url'
 
 import { GraphQLSchema } from 'graphql'
 import { buildSchema } from 'type-graphql'
 
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+
 export const schema = async (): Promise<GraphQLSchema> => {
   return buildSchema({
-    resolvers: [path.join(__dirname, 'resolvers', `!(*.spec).{ts}`)],
+    resolvers: [path.join(__dirname, 'resolvers', `!(*.spec).{ts,js}`)],
     validate: {
       validationError: { target: false },
       skipMissingProperties: true,
diff --git a/src/index.ts b/src/index.ts
index 7773cb7..0506e2d 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,25 +1,17 @@
-import { ApolloServer, gql } from 'apollo-server-express'
+// eslint-disable-next-line import/no-unassigned-import
+import 'reflect-metadata'
+
+import { ApolloServer } from 'apollo-server-express'
 import express from 'express'
 
-const typeDefs = gql`
-  type Query {
-    hello: String
-  }
-`
-
-const resolvers = {
-  Query: {
-    hello: () => 'Hello world!',
-  },
-}
+import { schema } from './graphql/schema'
 
 async function listen(port: number) {
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   const app: any = express()
 
   const server = new ApolloServer({
-    typeDefs,
-    resolvers,
+    schema: await schema(),
   })
   await server.start()
 
diff --git a/tsconfig.json b/tsconfig.json
index b43fd64..15546e1 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,10 +1,12 @@
 {
   "compilerOptions": {
-    "target": "es2021",
+    "target": "ESNext",
     "experimentalDecorators": true,
     "emitDecoratorMetadata": true,
-    "module": "ES2020",
+    "module": "ESNext",
     "moduleResolution": "node",
+    "baseUrl": ".",
+    "lib": ["ESNext"],
     "paths": {
       "#types/*": ["./src/graphql/types/*"]
     },
@@ -12,5 +14,8 @@
     "esModuleInterop": true,
     "strict": true,
     "skipLibCheck": true
+  },
+  "ts-node": {
+    "experimentalSpecifierResolution": "node"
   }
 }