Tessera

Folgen

Jarred Sumner

@jarredsumner.com

building Bun. formerly: stripe (twice) thielfellowship. high school dropout 🌈

125 Posts8306 Follower 32 Folgt

Simon Willison @simonwillison.net · 8mo ago

At the risk of starting the flame war to end all flame wars... Modern LLMs (GPT-5.1, Claude 4.5, Gemini 3) produce excellent code and can be a significant productivity boost to software engineers who take the time to learn how to effectively apply them - especially if used with coding agent tools

Bun @bun.sh · 11mo ago

30 days until Bun v1.3

Bun @bun.sh · last yr.

Bun v1.2.15 - Fixes 11 issues (addressing 261 👍) - `bun audit` scans for vulnerabilities - `bun pm view <pkg>` - `bun init` adds a Cursor rule - `bun ./index.html` gets "Automatic workspace folders" edit files in browser - Fixes for vm & worker_threads bun.sh/blog/bun-v1....

Bun v1.2.15

Fixes 11 issues (addressing 261 👍). bun audit scans dependencies for security vulnerabilities, bun pm view shows package metadata from npm. bun init adds a Cursor rule to use Bun instead of Node.js/Vi...

bun.sh

Jarred Sumner @jarredsumner.com · last yr.

It will only get better

Nat@nat.tamez.dev · last yr.

Using @bun.sh’s fullstack Dev server is amazing, it’s there perfect tool for a quick demo or a Proof of Concept.

Jarred Sumner @jarredsumner.com · last yr.

Bun’s 60 day goal: get 90% of Node.js’ test suite to pass in Bun For Bun employees during these 60 days, we setup a $200 bonus for every single newly passing test file from Node.js’ test suite that merges.

Jarred Sumner @jarredsumner.com · last yr.

In the next version of Bun `Bun.redis` is Bun's builtin Redis client

import { redis } from "bun";

// Set a key
await redis.set("greeting", "Hello from Bun!");

// Get a key
const greeting = await redis.get("greeting");
console.log(greeting); // "Hello from Bun!"

// Increment a counter
await redis.set("counter", "0");
await redis.incr("counter");

// Check if a key exists
const exists = await redis.exists("greeting");

// Delete a key
await redis.del("greeting");

Bun @bun.sh · last yr.

Bun v1.2.7 - Fixes 35 bugs (addressing 219 👍) - Builtin request.cookies.set & get in Bun.serve() routes - Fixed TypeScript type definitions conflicts with `@types/node` & libdom - Bugfixes for node:http, node:vm Thanks to 13 contributors! Full release notes below

Bun @bun.sh · last yr.

Bun v1.2.6 - Fixes 74 bugs (addressing 36 👍) - node:crypto gets faster & more Node.js compatible - Faster fastify & express - `timeout` in Bun.spawn - Dev Server stability fixes - Bun.SQL unix domain sockets Thanks to 23 contributors! bun.sh/blog/bun-v1....

Bun v1.2.6

Fixes 74 bugs (addressing 36 👍). Faster, more compatible node:crypto. `timeout` option in Bun.spawn. Support for `module.children` in `node:module`. Connect to PostgreSQL via unix sockets with `Bun.SQ...

bun.sh

Bun @bun.sh · last yr.

Bun v1.2.4 - Frontend dev server stability improvements - Codesign compiled executables on macOS - Up to 60% faster `bun build` on macOS - Node.js compatibility fixes - Faster array.includes - Many bugfixes Thanks to 17 contributors! bun.sh/blog/bun-v1....

Bun v1.2.4

Up to 60% faster Bun.build on macOS, codesigning support for single-file executables on macOS, dev server stability improvements, fixes a regression from v1.2.3 affecting Hono, fixes up/down buttons i...

bun.sh

koki @koki.me · last yr.

Bun マジで体験良すぎるのよな個人開発で JS で何か作るときは完全に Bun 一択になってしまった

Jarred Sumner @jarredsumner.com · last yr.

Bun's frontend dev server designs for incremental builds. Changing one file doesn't rebuild everything.

Bun @bun.sh · last yr.

Bun v1.2.3 - Fixes 128 bugs (addressing 349 👍) - Incredibly fast frontend dev server with hot reloading - Builtin routes in Bun.serve - Many Bun.SQL fixes - Wasm gets faster - Node compatibility improvements for napi & Buffer Thanks to 23 contributors! bun.sh/blog/release...

Bun v1.2.3

Fixes 128 bugs (addressing 349 👍). Bun gets a full-featured frontend development toolchain with incredibly fast hot reloading and bundling. Built-in routing for Bun.serve() makes it simpler to build w...

bun.sh

Jarred Sumner @jarredsumner.com · last yr.

The path to get 90% of Node’s test suite to pass in Bun is clear.

Jarred Sumner @jarredsumner.com · last yr.

In the next version of Bun Bun.serve() gets a simple builtin router.

import { serve, sql } from "bun";
import App from "./myReactSPA.html";

serve({
routes: {
"/*": App,
"/api/users/:id": async (req) => {
const id = req.params.id;
const [user] =
await sql`SELECT * FROM users WHERE id = ${id} LIMIT 1`;
return Response.json(user);
},
"/api/users": {
POST: async (req) => {
// ...
},
},
},

fetch: () => new Response("Not Found", { status: 404 }),
});

Jarred Sumner @jarredsumner.com · last yr.

In the next version of Bun `bun init` gets a new "React" option

Bun @bun.sh · last yr.

In the next version of Bun Bun.serve() gets builtin support for hot reloading frontend applications.

Jarred Sumner @jarredsumner.com · last yr.

In the next version of Bun `bun create ./MyComponent.tsx` turns a React component into a running dev server with zero config

Jarred Sumner @jarredsumner.com · 2y ago

In the next version of Bun `bun ./index.html` starts a frontend dev server

Bun @bun.sh · 2y ago

Bun v1.2.2 - Fixes 38 bugs (addressing 129 👍) - JavaScript idle memory usage reduced by 10–30% - Fixes v1.2.1 regression impacting `vite build` - Node compatibility fixes - Reliability improvements to Bun.SQL and Bun.S3Client Thanks to 12 contributors! bun.sh/blog/bun-v1....

Bun v1.2.2

Fixes 38 bugs (addressing 129 👍). JavaScript idle memory usage drops by 10–30%. Fixes regression impacting vite build. Reliability improvements to Bun.SQL, Bun.S3Client, Bun's CSS parser. Node.js comp...

bun.sh

Bun @bun.sh · 2y ago

Introducing Bun 1.2 bun.sh/blog/bun-v1.2

Bun 1.2

Built-in Postgres client with Bun.sql, built-in S3 object support with Bun.s3, a new text-based lockfile: bun.lock, Express is 3x faster, and a major update on Node.js compatibility.

bun.sh

Bun @bun.sh · 2y ago

Bun v1.2 in 17 hours youtu.be/uSzffuqfJQk?...

Bun 1.2

YouTube video by Bun

youtu.be

Jarred Sumner @jarredsumner.com · 2y ago

you probably didn't know Bun has all this builtin

Bun is a complete JavaScript toolkit
Everything you need to ship & maintain your app, built-in
Builtin Core Features
Essential runtime capabilities

Node.js compatibility
Bun aims to be a drop-in replacement for Node.js apps
View Docs
Web Standard APIs
powered by WebCore (from WebKit/Safari)
Support for web standard APIs like fetch, URL, EventTarget, Headers, etc.
View Docs
TypeScript
First-class support, including "paths" enum namespace
View Docs
JSX
First-class support without configuration
View Docs
Module loader plugins
Works in browsers & Bun
Plugin API for importing/requiring custom file types
View Docs
Builtin APIs
Built-in performance and native APIs designed for production

PostgresSQL driver
Bun.sql
Fastest available to JavaScript
High-performance cloud database access
View Docs
SQLite driver
bun:sqlite
Fastest available to JavaScript
High-performance local database access
View Docs
S3 Cloud Storage driver
Bun.s3
Fastest available to JavaScript
High-performance S3-compatible

Bun @bun.sh · 2y ago

Add a React frontend to your Express app in 7 lines of code with Bun

mport useStatic from "bun-use-static";
import app from "./my-express-app";
import mySinglePageApp from "./dashboard.html";

// Get the node:http Server from calling app.listen()
const server = app.listen(3000, () => {
console.log(`Example app listening on port 3000`);
});

useStatic(server, {
"/dashboard": mySinglePageApp,
});

Bun @bun.sh · 2y ago

Bun v1.1.44 - Fixes 43 bugs - 90% of Node's tests for the `dns` module pass in Bun - Bundle & serve frontend apps in Bun.serve() - `bunx --no-install <pkg> [...]` - Bugfixes to Bun's S3 client, HTMLRewriter, node:fs and more Thanks to 21 contributors! bun.sh/blog/bun-v1....

Bun v1.1.44

Fixes 43 bugs. > 90% of the 'dns' module tests from Node.js' test suite now pass in Bun. You can now build frontend applications on-demand in Bun.serve(). Adds xxHash support to Bun.hash(). Adds suppo...

bun.sh

Jarred Sumner @jarredsumner.com · 2y ago

Bun v1.2 ships on January 21

Jarred Sumner @jarredsumner.com · 2y ago

Downloading 7,000 24 KiB files in parallel from S3 in us-east-1 left: Bun v1.1.44 with Bun's S3 client right: Node v23.6.0 with AWS SDK v3

Bun @bun.sh · 2y ago

Bun v1.1.43 - 1st-class S3 support - HTML bundler - V8 heap snapshots - All but 1 of Node.js' "zlib" tests pass - 100% of Node.js[ "path" module tests pass - Many reliability & Node.js compatibility improvements Thanks to 22 contributors! bun.sh/blog/bun-v1....

Bun v1.1.43

Bun v1.1.43 introduces 1st-class S3 support, HTML bundling, bun install --filter, V8 heap snapshots, bun install --lockfile-only, bun add --peer, 100% of `node:path` module Node.js test pass, 98% of `...

bun.sh

Jarred Sumner @jarredsumner.com · 2y ago

We added S3 support to Bun because S3-compatible object storage slowly became the internet’s filesystem API. The same APIs for reading & writing files in development should just work in production.

Bun @bun.sh · 2y ago

In the next version of Bun Bun gets first-class support for S3. Upload, download, stream, and presign with 0 dependencies

$import { s3, file, write } from "bun"; const svg = s3("logo.svg", { accessKeyId: process.env.S3_ACCESS_KEY, secretAccessKey: process.env.S3_SECRET_KEY, endpoint: process.env.S3_ENDPOINT, bucket: process.env.S3_BUCKET, }); // Upload a local file to S3 await write(svg, file("./logo.svg")); // Download from S3 as text const text = await svg.text(); // or .json(), .bytes(), etc // Presign a URL const url = svg.presign(); console.log(url);$

Jarred Sumner @jarredsumner.com · 2y ago

In the next version of Bun `bun build` supports bundling assets, JS, and CSS from .html files