Cursor rule

.cursor/rules/use-bun-instead-of-node-vite-npm-pnpm.mdc

Use Bun instead of Node.js, npm, pnpm, or vite.

Cursor rules

Quality

73/100

Scores the file, not the repository.

Length

312 words

2 headings · 4 code blocks

Repository

10

— · pushed 396 days ago

Last changed

3 days ago

First indexed 3 days ago.

pylarco/diff-apply/.cursor/rules/use-bun-instead-of-node-vite-npm-pnpm.mdcRaw GitHub

1---
2description: Use Bun instead of Node.js, npm, pnpm, or vite.
3globs: "*.ts, *.tsx, *.html, *.css, *.js, *.jsx, package.json"
4alwaysApply: false
5---
6 
7Default to using Bun instead of Node.js.
8 
9- Use `bun <file>` instead of `node <file>` or `ts-node <file>`
10- Use `bun test` instead of `jest` or `vitest`
11- Use `bun build <file.html|file.ts|file.css>` instead of `webpack` or `esbuild`
12- Use `bun install` instead of `npm install` or `yarn install` or `pnpm install`
13- Use `bun run <script>` instead of `npm run <script>` or `yarn run <script>` or `pnpm run <script>`
14- Bun automatically loads .env, so don't use dotenv.
15 
16## APIs
17 
18- `Bun.serve()` supports WebSockets, HTTPS, and routes. Don't use `express`.
19- `bun:sqlite` for SQLite. Don't use `better-sqlite3`.
20- `Bun.redis` for Redis. Don't use `ioredis`.
21- `Bun.sql` for Postgres. Don't use `pg` or `postgres.js`.
22- `WebSocket` is built-in. Don't use `ws`.
23- Prefer `Bun.file` over `node:fs`'s readFile/writeFile
24- Bun.$`ls` instead of execa.
25 
26## Frontend
27 
28Use HTML imports with `Bun.serve()`. Don't use `vite`. HTML imports fully support React, CSS, Tailwind.
29 
30Server:
31 
32```ts#index.ts
33import index from "./index.html"
34 
35Bun.serve({
36  routes: {
37    "/": index,
38    "/api/users/:id": {
39      GET: (req) => {
40        return new Response(JSON.stringify({ id: req.params.id }));
41      },
42    },
43  },
44  // optional websocket support
45  websocket: {
46    open: (ws) => {
47      ws.send("Hello, world!");
48    },
49    message: (ws, message) => {
50      ws.send(message);
51    },
52    close: (ws) => {
53      // handle close
54    }
55  },
56  development: {
57    hmr: true,
58    console: true,
59  }
60})
61```
62 
63HTML files can import .tsx, .jsx or .js files directly and Bun's bundler will transpile & bundle automatically. `<link>` tags can point to stylesheets and Bun's CSS bundler will bundle.
64 
65```html#index.html
66<html>
67  <body>
68    <h1>Hello, world!</h1>
69    <script type="module" src="./frontend.tsx"></script>
70  </body>
71</html>
72```
73 
74With the following `frontend.tsx`:
75 
76```tsx#frontend.tsx
77import React from "react";
78 
79// import .css files directly and it works
80import './index.css';
81 
82import { createRoot } from "react-dom/client";
83 
84const root = createRoot(document.body);
85 
86export default function Frontend() {
87  return <h1>Hello, world!</h1>;
88}
89 
90root.render(<Frontend />);
91```
92 
93Then, run index.ts
94 
95```sh
96bun --hot ./index.ts
97```
98 
99For more information, read the Bun API docs in `node_modules/bun-types/docs/**.md`.
100

Also in pylarco/diff-apply

Diff this repo’s formats

One repository carrying more than one format is the comparison this product exists for: does anyone actually write different content in each file, or is one a copy of the other?

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pylarco/diff-apply.cursor/rules/elysia.rule.mdc · 10	Cursor rules	typescriptjavascript+1	no sections	16/100	3 days ago
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pylarco/diff-apply.cursor/rules/motion.mdc · 10	Cursor rules	typescriptjavascript+1	no sections	16/100	3 days ago
pylarco/diff-apply.cursor/rules/test.mdc · 10	Cursor rules	typescriptjavascript+1	testing-strategydo-not	31/100	3 days ago

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