diff --git a/.eslintignore b/.eslintignore
index ca9cd8a..63f6cdc 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,4 +1,4 @@
-/dist
-/src/vendor
-/pnpm-lock.yaml
-/jotai
\ No newline at end of file
+dist
+examples
+node_modules
+website
diff --git a/.github/workflows/lint-and-type.yml b/.github/workflows/lint-and-type.yml
new file mode 100644
index 0000000..eab3066
--- /dev/null
+++ b/.github/workflows/lint-and-type.yml
@@ -0,0 +1,31 @@
+name: lint and type
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: pnpm
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile --prefer-offline
+      - name: Prettier
+        run: pnpm run prettier:ci
+      - name: Lint
+        run: pnpm run eslint:ci
+      - name: Type
+        run: pnpm run typecheck
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..5691705
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,27 @@
+name: test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    types: [opened, synchronize]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: pnpm
+      - name: Install dependencies
+        run: pnpm install --frozen-lockfile --prefer-offline
+      - name: Run Tests
+        run: pnpm run test
diff --git a/examples/demo-01/src/App.tsx b/examples/demo-01/src/App.tsx
index bca4cf4..bb8f9d4 100644
--- a/examples/demo-01/src/App.tsx
+++ b/examples/demo-01/src/App.tsx
@@ -1,65 +1,69 @@
-import { atom } from 'jotai';
-import { useAtomValueWithSchedule, useAtomWithSchedule, ImmediatePriority, LowPriority } from 'jotai-scheduler';
-import { useAtom, useAtomValue } from 'jotai';
+import { atom, useAtom, useAtomValue } from 'jotai'
+import {
+  useAtomValueWithSchedule,
+  useAtomWithSchedule,
+  ImmediatePriority,
+  LowPriority,
+} from 'jotai-scheduler'
 
-import './App.css';
+import './App.css'
 
-const anAtom = atom(0);
+const anAtom = atom(0)
 
 const simulateHeavyRender = () => {
-  const start = performance.now();
+  const start = performance.now()
   while (performance.now() - start < 500) {}
-};
+}
 
-const Header = () => {
-  simulateHeavyRender();
+function Header() {
+  simulateHeavyRender()
   // const num = useAtomValue(anAtom);
-  console.log('Header Component Render');
+  console.log('Header Component Render')
   const num = useAtomValueWithSchedule(anAtom, {
     priority: LowPriority,
-  });
-  return <div className="header">Header-{num}</div>;
-};
+  })
+  return <div className="header">Header-{num}</div>
+}
 
-const Footer = () => {
-  simulateHeavyRender();
+function Footer() {
+  simulateHeavyRender()
   // const num = useAtomValue(anAtom);
-  console.log('Footer Component Render');
+  console.log('Footer Component Render')
   const num = useAtomValueWithSchedule(anAtom, {
     priority: LowPriority,
-  });
-  return <div className="footer">Footer-{num}</div>;
-};
+  })
+  return <div className="footer">Footer-{num}</div>
+}
 
-const Sidebar = () => {
-  simulateHeavyRender();
+function Sidebar() {
+  simulateHeavyRender()
   // const num = useAtomValue(anAtom);
-  console.log('Sidebar Component Render');
-  const num = useAtomValueWithSchedule(anAtom);
-  return <div className="sidebar">Sidebar-{num}</div>;
-};
+  console.log('Sidebar Component Render')
+  const num = useAtomValueWithSchedule(anAtom)
+  return <div className="sidebar">Sidebar-{num}</div>
+}
 
-const Content = () => {
-  simulateHeavyRender();
+function Content() {
+  simulateHeavyRender()
   // const [num, setNum] = useAtom(anAtom);
-  console.log('Content Component Render');
+  console.log('Content Component Render')
   const [num, setNum] = useAtomWithSchedule(anAtom, {
     priority: ImmediatePriority,
-  });
+  })
   return (
     <div className="content">
       <div>Content-{num}</div>
       <button
         onClick={() => {
-          setNum((num) => ++num);
-          console.log('trigger');
+          setNum((num) => ++num)
+          console.log('trigger')
         }}
       >
         +1
       </button>
     </div>
-  );
-};
+  )
+}
 
 export function App() {
   return (
@@ -71,5 +75,5 @@ export function App() {
       </div>
       <Footer />
     </div>
-  );
+  )
 }
diff --git a/examples/demo-01/src/index.tsx b/examples/demo-01/src/index.tsx
index 8a2ac33..76f4a69 100644
--- a/examples/demo-01/src/index.tsx
+++ b/examples/demo-01/src/index.tsx
@@ -1,8 +1,8 @@
-import React from 'react';
-import { createRoot } from 'react-dom/client';
-import { App } from './App';
+import React from 'react'
+import { createRoot } from 'react-dom/client'
+import { App } from './App'
 
-const ele = document.getElementById('app');
+const ele = document.getElementById('app')
 if (ele) {
-  createRoot(ele).render(React.createElement(App));
+  createRoot(ele).render(React.createElement(App))
 }
diff --git a/package.json b/package.json
index 5633e3e..2242334 100644
--- a/package.json
+++ b/package.json
@@ -27,10 +27,16 @@
     "compile": "microbundle build -f modern,umd --globals react=React --no-compress",
     "postcompile": "cp dist/index.modern.mjs dist/index.modern.js && cp dist/index.modern.mjs.map dist/index.modern.js.map",
     "prepublishOnly": "pnpm run compile && pnpm run postcompile",
-    "test": "run-s eslint tsc-test jest",
-    "eslint": "eslint --ext .js,.ts,.tsx .",
-    "jest": "jest",
-    "tsc-test": "tsc --project . --noEmit"
+    "test": "jest --passWithNoTests",
+    "eslint": "eslint --no-eslintrc -c .eslintrc.json --fix '**/src/*.{js,jsx,ts,tsx}'",
+    "eslint:ci": "eslint --no-eslintrc -c .eslintrc.json '**/src/*.{js,jsx,ts,tsx}'",
+    "prettier": "prettier '**/{examples,src,__tests__,website}/**/*.{js,jsx,ts,tsx,md}' --write",
+    "prettier:ci": "prettier '**/{examples,src,__tests__,website}/**/*.{js,jsx,ts,tsx,md}' --list-different",
+    "typecheck": "tsc --project . --noEmit"
+  },
+  "prettier": {
+    "semi": false,
+    "singleQuote": true
   },
   "jest": {
     "testEnvironment": "jsdom",
diff --git a/src/constants.ts b/src/constants.ts
index 9bbab58..8e2197e 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -1,3 +1,3 @@
-export const ImmediatePriority = 1;
-export const NormalPriority = 2;
-export const LowPriority = 3;
+export const ImmediatePriority = 1
+export const NormalPriority = 2
+export const LowPriority = 3
diff --git a/src/index.ts b/src/index.ts
index f37f996..93c8c02 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,5 +1,5 @@
-export { useAtomValueWithSchedule } from './useAtomValueWithSchedule';
-export { useAtomWithSchedule } from './useAtomWithSchedule';
-export { useSetAtomWithSchedule } from './useSetAtomWithSchedule';
-export { LowPriority, NormalPriority, ImmediatePriority } from './constants';
-export * from './types';
+export { useAtomValueWithSchedule } from './useAtomValueWithSchedule'
+export { useAtomWithSchedule } from './useAtomWithSchedule'
+export { useSetAtomWithSchedule } from './useSetAtomWithSchedule'
+export { LowPriority, NormalPriority, ImmediatePriority } from './constants'
+export * from './types'
diff --git a/src/types.ts b/src/types.ts
index 0ecb13b..bc16dd1 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,25 +1,25 @@
-import { Atom, useStore } from 'jotai';
-import { ImmediatePriority, LowPriority, NormalPriority } from './constants';
+import { Atom, useStore } from 'jotai'
+import { ImmediatePriority, LowPriority, NormalPriority } from './constants'
 
-export type SetAtom<Args extends unknown[], Result> = (...args: Args) => Result;
+export type SetAtom<Args extends unknown[], Result> = (...args: Args) => Result
 
-export type AnyAtom = Atom<unknown>;
+export type AnyAtom = Atom<unknown>
 
-export type Store = ReturnType<typeof useStore>;
+export type Store = ReturnType<typeof useStore>
 
-export type Listener = () => void;
+export type Listener = () => void
 
 export type PriorityLevel =
   | typeof ImmediatePriority
   | typeof NormalPriority
-  | typeof LowPriority;
+  | typeof LowPriority
 
 export type Options = Parameters<typeof useStore>[0] & {
-  delay?: number;
-  priority?: PriorityLevel;
-};
+  delay?: number
+  priority?: PriorityLevel
+}
 
 export type Task = {
-  priority: PriorityLevel;
-  subscribe: Listener;
-};
+  priority: PriorityLevel
+  subscribe: Listener
+}
diff --git a/src/useAtomValueWithSchedule.ts b/src/useAtomValueWithSchedule.ts
index 82a2aac..c05960c 100644
--- a/src/useAtomValueWithSchedule.ts
+++ b/src/useAtomValueWithSchedule.ts
@@ -1,33 +1,33 @@
 /// <reference types="react/experimental" />
 
-import { useDebugValue, useEffect, useReducer } from 'react';
-import type { ReducerWithoutAction } from 'react';
-import type { Atom, ExtractAtomValue } from 'jotai';
-import { useStore } from 'jotai';
+import { useDebugValue, useEffect, useReducer } from 'react'
+import type { ReducerWithoutAction } from 'react'
+import type { Atom, ExtractAtomValue } from 'jotai'
+import { useStore } from 'jotai'
 
-import { NormalPriority } from './constants';
-import { isLastElement, isPromiseLike, use } from './utils';
-import { addTask, initiateWorkLoop } from './workLoop';
-import { AnyAtom, Options, Store, PriorityLevel, Listener } from './types';
+import { NormalPriority } from './constants'
+import { isLastElement, isPromiseLike, use } from './utils'
+import { addTask, initiateWorkLoop } from './workLoop'
+import { AnyAtom, Options, Store, PriorityLevel, Listener } from './types'
 
-const prioritySubscriptionsMap = new Map<Listener, PriorityLevel>();
-const atomListenersMap = new Map<AnyAtom, Set<Listener>>();
+const prioritySubscriptionsMap = new Map<Listener, PriorityLevel>()
+const atomListenersMap = new Map<AnyAtom, Set<Listener>>()
 
 export function useAtomValueWithSchedule<Value>(
   atom: Atom<Value>,
   options?: Options,
-): Awaited<Value>;
+): Awaited<Value>
 
 export function useAtomValueWithSchedule<AtomType extends AnyAtom>(
   atom: AtomType,
   options?: Options,
-): Awaited<ExtractAtomValue<AtomType>>;
+): Awaited<ExtractAtomValue<AtomType>>
 
 export function useAtomValueWithSchedule<Value>(
   atom: Atom<Value>,
   options?: Options,
 ) {
-  const store = useStore(options);
+  const store = useStore(options)
 
   const [[valueFromReducer, storeFromReducer, atomFromReducer], rerender] =
     useReducer<
@@ -35,43 +35,43 @@ export function useAtomValueWithSchedule<Value>(
       undefined
     >(
       (prev) => {
-        const nextValue = store.get(atom);
+        const nextValue = store.get(atom)
         if (
           Object.is(prev[0], nextValue) &&
           prev[1] === store &&
           prev[2] === atom
         ) {
-          return prev;
+          return prev
         }
-        return [nextValue, store, atom];
+        return [nextValue, store, atom]
       },
       undefined,
       () => [store.get(atom), store, atom],
-    );
+    )
 
-  let value = valueFromReducer;
+  let value = valueFromReducer
   if (storeFromReducer !== store || atomFromReducer !== atom) {
-    rerender();
-    value = store.get(atom);
+    rerender()
+    value = store.get(atom)
   }
 
-  const delay = options?.delay;
-  const priority = options?.priority ?? NormalPriority;
+  const delay = options?.delay
+  const priority = options?.priority ?? NormalPriority
 
   useEffect(() => {
     const subscribe = () => {
       if (typeof delay === 'number') {
         // delay rerendering to wait a promise possibly to resolve
-        setTimeout(rerender, delay);
-        return;
+        setTimeout(rerender, delay)
+        return
       }
-      rerender();
-    };
+      rerender()
+    }
 
-    prioritySubscriptionsMap.set(subscribe, priority);
-    const listeners = atomListenersMap.get(atom) ?? new Set();
-    listeners.add(subscribe);
-    atomListenersMap.set(atom, listeners);
+    prioritySubscriptionsMap.set(subscribe, priority)
+    const listeners = atomListenersMap.get(atom) ?? new Set()
+    listeners.add(subscribe)
+    atomListenersMap.set(atom, listeners)
 
     const unsub = store.sub(atom, () => {
       if (isLastElement(listeners, subscribe)) {
@@ -79,22 +79,22 @@ export function useAtomValueWithSchedule<Value>(
           addTask({
             subscribe: listener,
             priority: prioritySubscriptionsMap.get(listener)!,
-          });
+          })
         }
-        initiateWorkLoop();
+        initiateWorkLoop()
       }
-    });
+    })
 
     return () => {
-      unsub();
-      prioritySubscriptionsMap.delete(subscribe);
-      listeners.delete(subscribe);
-    };
-  }, [atom, delay, priority, store]);
+      unsub()
+      prioritySubscriptionsMap.delete(subscribe)
+      listeners.delete(subscribe)
+    }
+  }, [atom, delay, priority, store])
 
-  useDebugValue(value);
+  useDebugValue(value)
   // TS doesn't allow using `use` always.
   // The use of isPromiseLike is to be consistent with `use` type.
   // `instanceof Promise` actually works fine in this case.
-  return isPromiseLike(value) ? use(value) : (value as Awaited<Value>);
+  return isPromiseLike(value) ? use(value) : (value as Awaited<Value>)
 }
diff --git a/src/useAtomWithSchedule.ts b/src/useAtomWithSchedule.ts
index b149c76..21bca27 100644
--- a/src/useAtomWithSchedule.ts
+++ b/src/useAtomWithSchedule.ts
@@ -6,25 +6,25 @@ import type {
   PrimitiveAtom,
   SetStateAction,
   WritableAtom,
-} from 'jotai';
-import { useAtomValueWithSchedule } from './useAtomValueWithSchedule';
-import { useSetAtomWithSchedule } from './useSetAtomWithSchedule';
-import { Options, SetAtom } from './types';
+} from 'jotai'
+import { useAtomValueWithSchedule } from './useAtomValueWithSchedule'
+import { useSetAtomWithSchedule } from './useSetAtomWithSchedule'
+import { Options, SetAtom } from './types'
 
 export function useAtomWithSchedule<Value, Args extends unknown[], Result>(
   atom: WritableAtom<Value, Args, Result>,
   options?: Options,
-): [Awaited<Value>, SetAtom<Args, Result>];
+): [Awaited<Value>, SetAtom<Args, Result>]
 
 export function useAtomWithSchedule<Value>(
   atom: PrimitiveAtom<Value>,
   options?: Options,
-): [Awaited<Value>, SetAtom<[SetStateAction<Value>], void>];
+): [Awaited<Value>, SetAtom<[SetStateAction<Value>], void>]
 
 export function useAtomWithSchedule<Value>(
   atom: Atom<Value>,
   options?: Options,
-): [Awaited<Value>, never];
+): [Awaited<Value>, never]
 
 export function useAtomWithSchedule<
   AtomType extends WritableAtom<unknown, never[], unknown>,
@@ -34,12 +34,12 @@ export function useAtomWithSchedule<
 ): [
   Awaited<ExtractAtomValue<AtomType>>,
   SetAtom<ExtractAtomArgs<AtomType>, ExtractAtomResult<AtomType>>,
-];
+]
 
 export function useAtomWithSchedule<AtomType extends Atom<unknown>>(
   atom: AtomType,
   options?: Options,
-): [Awaited<ExtractAtomValue<AtomType>>, never];
+): [Awaited<ExtractAtomValue<AtomType>>, never]
 
 export function useAtomWithSchedule<Value, Args extends unknown[], Result>(
   atom: Atom<Value> | WritableAtom<Value, Args, Result>,
@@ -49,5 +49,5 @@ export function useAtomWithSchedule<Value, Args extends unknown[], Result>(
     useAtomValueWithSchedule(atom, options),
     // We do wrong type assertion here, which results in throwing an error.
     useSetAtomWithSchedule(atom as WritableAtom<Value, Args, Result>, options),
-  ];
+  ]
 }
diff --git a/src/useSetAtomWithSchedule.ts b/src/useSetAtomWithSchedule.ts
index f7646ab..1d1f0d7 100644
--- a/src/useSetAtomWithSchedule.ts
+++ b/src/useSetAtomWithSchedule.ts
@@ -1,25 +1,25 @@
-import { useCallback } from 'react';
-import type { ExtractAtomArgs, ExtractAtomResult, WritableAtom } from 'jotai';
-import { useStore } from 'jotai';
-import { Options, SetAtom } from './types';
+import { useCallback } from 'react'
+import type { ExtractAtomArgs, ExtractAtomResult, WritableAtom } from 'jotai'
+import { useStore } from 'jotai'
+import { Options, SetAtom } from './types'
 
 export function useSetAtomWithSchedule<Value, Args extends unknown[], Result>(
   atom: WritableAtom<Value, Args, Result>,
   options?: Options,
-): SetAtom<Args, Result>;
+): SetAtom<Args, Result>
 
 export function useSetAtomWithSchedule<
   AtomType extends WritableAtom<unknown, never[], unknown>,
 >(
   atom: AtomType,
   options?: Options,
-): SetAtom<ExtractAtomArgs<AtomType>, ExtractAtomResult<AtomType>>;
+): SetAtom<ExtractAtomArgs<AtomType>, ExtractAtomResult<AtomType>>
 
 export function useSetAtomWithSchedule<Value, Args extends unknown[], Result>(
   atom: WritableAtom<Value, Args, Result>,
   options?: Options,
 ) {
-  const store = useStore(options);
+  const store = useStore(options)
   const setAtom = useCallback(
     (...args: Args) => {
       // eslint-disable-next-line @typescript-eslint/ban-ts-comment
@@ -27,11 +27,11 @@ export function useSetAtomWithSchedule<Value, Args extends unknown[], Result>(
       if (import.meta.env?.MODE !== 'production' && !('write' in atom)) {
         // useAtom can pass non writable atom with wrong type assertion,
         // so we should check here.
-        throw new Error('not writable atom');
+        throw new Error('not writable atom')
       }
-      return store.set(atom, ...args);
+      return store.set(atom, ...args)
     },
     [store, atom],
-  );
-  return setAtom;
+  )
+  return setAtom
 }
diff --git a/src/utils.ts b/src/utils.ts
index 4bc2aab..276696f 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -1,46 +1,46 @@
-import ReactExports from 'react';
+import ReactExports from 'react'
 
 export function isLastElement(set: Set<() => void>, element: () => void) {
-  const iterator = set.values();
-  let result = iterator.next();
-  let last = result.value;
+  const iterator = set.values()
+  let result = iterator.next()
+  let last = result.value
   while (!result.done) {
-    last = result.value;
-    result = iterator.next();
+    last = result.value
+    result = iterator.next()
   }
-  return last === element;
+  return last === element
 }
 
 export const isPromiseLike = (x: unknown): x is PromiseLike<unknown> =>
-  typeof (x as any)?.then === 'function';
+  typeof (x as any)?.then === 'function'
 
 export const use =
   ReactExports.use ||
   (<T>(
     promise: PromiseLike<T> & {
-      status?: 'pending' | 'fulfilled' | 'rejected';
-      value?: T;
-      reason?: unknown;
+      status?: 'pending' | 'fulfilled' | 'rejected'
+      value?: T
+      reason?: unknown
     },
   ): T => {
     if (promise.status === 'pending') {
-      throw promise;
+      throw promise
     } else if (promise.status === 'fulfilled') {
-      return promise.value as T;
+      return promise.value as T
     } else if (promise.status === 'rejected') {
-      throw promise.reason;
+      throw promise.reason
     } else {
-      promise.status = 'pending';
+      promise.status = 'pending'
       promise.then(
         (v) => {
-          promise.status = 'fulfilled';
-          promise.value = v;
+          promise.status = 'fulfilled'
+          promise.value = v
         },
         (e) => {
-          promise.status = 'rejected';
-          promise.reason = e;
+          promise.status = 'rejected'
+          promise.reason = e
         },
-      );
-      throw promise;
+      )
+      throw promise
     }
-  });
+  })
diff --git a/src/workLoop.ts b/src/workLoop.ts
index 8991801..95584cc 100644
--- a/src/workLoop.ts
+++ b/src/workLoop.ts
@@ -1,48 +1,48 @@
-import { Task } from './types';
+import { Task } from './types'
 
-let isMessageLoopRunning: boolean = false;
+let isMessageLoopRunning: boolean = false
 
-const taskQueue: Array<Task> = [];
+const taskQueue: Array<Task> = []
 
 function workLoop(): boolean {
-  const highestPriority = Math.min(...taskQueue.map((task) => task.priority));
+  const highestPriority = Math.min(...taskQueue.map((task) => task.priority))
   const highestPriorityList = taskQueue.filter(
     (task) => task.priority === highestPriority,
-  );
+  )
   highestPriorityList.forEach((task) => {
-    task.subscribe();
-    taskQueue.splice(taskQueue.indexOf(task), 1);
-  });
+    task.subscribe()
+    taskQueue.splice(taskQueue.indexOf(task), 1)
+  })
   if (taskQueue.length > 0) {
-    return true;
+    return true
   }
-  return false;
+  return false
 }
 
 function handleNextBatch() {
-  const hasMoreWork = workLoop();
+  const hasMoreWork = workLoop()
   if (hasMoreWork) {
-    enqueueWorkExecution();
+    enqueueWorkExecution()
   } else {
-    isMessageLoopRunning = false;
+    isMessageLoopRunning = false
   }
 }
 
-const channel = new MessageChannel();
-const port = channel.port2;
-channel.port1.onmessage = handleNextBatch;
+const channel = new MessageChannel()
+const port = channel.port2
+channel.port1.onmessage = handleNextBatch
 
 export const enqueueWorkExecution = () => {
-  port.postMessage(null);
-};
+  port.postMessage(null)
+}
 
 export const initiateWorkLoop = () => {
   if (!isMessageLoopRunning) {
-    isMessageLoopRunning = true;
-    enqueueWorkExecution();
+    isMessageLoopRunning = true
+    enqueueWorkExecution()
   }
-};
+}
 
 export const addTask = (newTask: Task) => {
-  taskQueue.push(newTask);
-};
+  taskQueue.push(newTask)
+}