diff --git a/packages/core/.prettierrc b/packages/core/.prettierrc
deleted file mode 100644
index fed742a7a..000000000
--- a/packages/core/.prettierrc
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "printWidth": 100,
-  "trailingComma": "es5",
-  "bracketSpacing": true
-}
diff --git a/packages/core/.xo-config.json b/packages/core/.xo-config.json
deleted file mode 100644
index 7116a679b..000000000
--- a/packages/core/.xo-config.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "space": true,
-  "prettier": true,
-  "rules": {
-    "unicorn/no-array-reduce": "off"
-  }
-}
diff --git a/packages/core/package.json b/packages/core/package.json
index 46acf5be2..e0245f623 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -12,6 +12,7 @@
     "dev": "tsc-watch --onSuccess \"node ./build/index.js\""
   },
   "dependencies": {
+    "@logto/essentials": "^1.0.2",
     "@logto/schemas": "^1.0.0",
     "dayjs": "^1.10.5",
     "dotenv": "^10.0.0",
@@ -36,5 +37,6 @@
   "engines": {
     "node": "14",
     "yarn": "1"
-  }
+  },
+  "prettier": "@logto/essentials/.prettierrc.json"
 }
diff --git a/packages/core/src/init/index.ts b/packages/core/src/init/index.ts
index 0deb69a93..5688dd3b6 100644
--- a/packages/core/src/init/index.ts
+++ b/packages/core/src/init/index.ts
@@ -5,7 +5,6 @@ import initOidc from './oidc';
 import initRouter from './router';
 
 export default async function initApp(app: Koa, port: number): Promise<void> {
-  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
   app.use(logger());
   await initOidc(app, port);
   initRouter(app);
diff --git a/packages/core/tsconfig.json b/packages/core/tsconfig.json
index 3d3ea5386..5d40dd9b3 100644
--- a/packages/core/tsconfig.json
+++ b/packages/core/tsconfig.json
@@ -1,16 +1,7 @@
 {
+  "extends": "@logto/essentials/tsconfig.base",
   "compilerOptions": {
-    "target": "es2021",
-    "esModuleInterop": true,
-    "allowSyntheticDefaultImports": true,
-    "strict": true,
-    "forceConsistentCasingInFileNames": true,
-    "noFallthroughCasesInSwitch": true,
-    "module": "commonjs",
-    "moduleResolution": "node",
     "outDir": "build"
   },
-  "include": [
-    "src"
-  ]
+  "include": ["src"]
 }
diff --git a/packages/core/xo.config.js b/packages/core/xo.config.js
new file mode 100644
index 000000000..9a8c91c1c
--- /dev/null
+++ b/packages/core/xo.config.js
@@ -0,0 +1 @@
+module.exports = require("@logto/essentials/.xo-config.json");
diff --git a/packages/core/yarn.lock b/packages/core/yarn.lock
index b997ec63f..518350783 100644
--- a/packages/core/yarn.lock
+++ b/packages/core/yarn.lock
@@ -251,6 +251,14 @@
   dependencies:
     vary "^1.1.2"
 
+"@logto/essentials@^1.0.2":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@logto/essentials/-/essentials-1.0.2.tgz#02a8c878b4079a63709c35ce8c143370f259bb13"
+  integrity sha512-GN6m1c5ll7EhOgJbmFwRESkeWGjdoihst8O1aVIxvEOXhLe/79bph4hejsdm59piX3jgKWakEHimpqcBT1kO+Q==
+  dependencies:
+    lodash.orderby "^4.6.0"
+    lodash.pick "^4.4.0"
+
 "@logto/schemas@^1.0.0":
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/@logto/schemas/-/schemas-1.0.0.tgz#5dbeec9caa9b1882b00b7507b8f6f337c8665ca9"
@@ -3272,6 +3280,16 @@ lodash.merge@^4.6.2:
   resolved "https://registry.yarnpkg.com/lodash.merge/-/lodash.merge-4.6.2.tgz#558aa53b43b661e1925a0afdfa36a9a1085fe57a"
   integrity sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==
 
+lodash.orderby@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.orderby/-/lodash.orderby-4.6.0.tgz#e697f04ce5d78522f54d9338b32b81a3393e4eb3"
+  integrity sha1-5pfwTOXXhSL1TZM4syuBozk+TrM=
+
+lodash.pick@^4.4.0:
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/lodash.pick/-/lodash.pick-4.4.0.tgz#52f05610fff9ded422611441ed1fc123a03001b3"
+  integrity sha1-UvBWEP/53tQiYRRB7R/BI6AwAbM=
+
 lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"