@jarredsumner Avatar @jarredsumner Jarred Sumner

Jarred Sumner posts on X about claude code, bun, javascript, code the most. They currently have [-------] followers and [---] posts still getting attention that total [-------] engagements in the last [--] hours.

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Social Influence

Social category influence technology brands #1878 finance 4.23% social networks 1.59% stocks 1.06% countries 1.06% cryptocurrencies 0.53%

Social topic influence claude code #4, bun #25, javascript #362, code #2463, in the 2.12%, money 1.59%, anthropic #16, we are 1.59%, stack 1.59%, frame #1868

Top accounts mentioned or mentioned by @bunjavascript @thdxr @theo @swichlabs @rhyssullivan @grok @rv_rajvishnu @harjjotsinghh @olivierddr @goatedeng @merlindru @ryiacy @drdiffie @anexileddev @mrpancakes39 @inerati @qethull @damageboy @deebovv @benjdicken

Top assets mentioned Uber Technologies, Inc. (UBER) Cloudflare, Inc. (NET) ELYSIA (EL)

Top Social Posts

Top posts by engagements in the last [--] hours

"claude sometimes writes "test" comments when run on a PR in github actions and the first [--] times i thought it was a person testing the bot account"
X Link 2026-02-12T07:49Z 155.9K followers, 16.3K engagements

"Can someone explain to me why [---] tok/s is fast and what in-the-weeds technical constraints prevent [------] tok/s at same quality My gut is theres incredible waste due to infinite money and in a world w/ 1/10000th of the capital models would be orders of magnitude better"
X Link 2025-11-02T14:42Z 154.3K followers, 515.2K engagements

"@drdiffie React's JSX is one of the most popular templating languages in the world. When rendering markdown many apps want to customize what h1 or p means to match their design system. So this lets you override that"
X Link 2026-01-29T04:48Z 153.8K followers, [----] engagements

"Guess the new JavaScript feature were adding support for in Bun v1.3.9"
X Link 2026-01-30T07:20Z 153.8K followers, 39.8K engagements

"what large features should I run claude in a loop to try adding to bun constraints: - must have a large test suite with positive & negative tests that verify it works - must have strong evidence of being something people want & would use bun for"
X Link 2026-01-31T06:35Z 153.8K followers, 48.1K engagements

"If you use LSP plugins in Claude Code do you feel like it helps Claude produce better output"
X Link 2026-01-31T21:02Z 153.9K followers, 51.2K engagements

"Thinking of unshipping it due to many reports of having a large negative performance impact (clangd & rust-analyzer love using [--] GB of ram) I dont use this feature myself because claude can just run the build to know"
X Link 2026-01-31T21:02Z 154.2K followers, 103.8K engagements

"This code is OSS but I'm not linking to it because there's no need for random people to comment on the PR"
X Link 2026-02-01T05:01Z 154.4K followers, 92.4K engagements

"@AnExiledDev Nope. This code wasn't written by Anthropic employees"
X Link 2026-02-01T05:04Z 153.8K followers, 59K engagements

"A fix for idle CPU usage has been merged and will be part of the v2.1.30 release (tomorrow). It's still using too much CPU when not idle and we are working on a fix. Claude Code is burning my laptop @jarredsumner I am on 2.1.29. please fix it. @theo seems to have already reported Claude Code is burning my laptop @jarredsumner I am on 2.1.29. please fix it. @theo seems to have already reported"
X Link 2026-02-02T00:25Z 154.4K followers, 417.8K engagements

"In the next version of Claude Code Claude Code writes fewer bytes to the terminal which reduces latency & improves memory usage a little"
X Link 2026-02-02T00:53Z 154.4K followers, 247.6K engagements

"This was unrelated to CPU usage or memory usage improvements"
X Link 2026-02-02T00:55Z 154.1K followers, 20.5K engagements

"forgot to mention Claude found this bug by looking through the heapsnapshot and noticing that the init variable was keeping alive large strings (request bodies) which was kept alive by the JSLexicalScope (closure accessing variables from parent scope) due to the AbortSignal"
X Link 2026-02-02T09:34Z 154.5K followers, 23.4K engagements

"node:readline itself is very expensive. I think that should be replaced with libghostty"
X Link 2026-02-02T12:22Z 154.3K followers, 17.5K engagements

"@coldnadongie React Is Good Actually And Most People Saying Otherwise Dont Ship Anything"
X Link 2026-02-02T12:45Z 154.4K followers, 45.8K engagements

"One thing I learned while working on this Bun is running GC too much. Sampling the call stack in the idle & spinner loops showed about 2/3 of time was GC and 1/3 was JS. In the next version of Claude Code Reduced CPU usage by (1) consolidating timers (2) slightly slowing timers when not focused https://t.co/KpeY7EHbCM In the next version of Claude Code Reduced CPU usage by (1) consolidating timers (2) slightly slowing timers when not focused https://t.co/KpeY7EHbCM"
X Link 2026-02-03T20:18Z 154.3K followers, 299.6K engagements

"Whenever Bun is about to idle in the event loop about [--] out of every [--] times we run opportunistic GC. This reduces memory usage a lot in servers but its not very careful about when it should or shouldnt run"
X Link 2026-02-03T20:18Z 153.7K followers, 18.3K engagements

"In browsers like Safari opportunistic GC runs after the frame finishes rendering with a time limit of how much time it took to render the previous frame minus the target frame rate. Basically browsers ask how much wiggle room for GC do I have so the user wont notice"
X Link 2026-02-03T20:18Z 154.4K followers, 18.2K engagements

"node:fs readFile needs a maxLength and offset option"
X Link 2026-02-04T04:47Z 154.3K followers, 25.3K engagements

"@iannuttall If youre on a Mac you can add your terminal/editor to Developer Tools in system settings and things should load a bit faster. Note that this partially disables Gatekeeper"
X Link 2026-02-04T16:48Z 154K followers, 11.2K engagements

"@neogoose_btw Bun is not running GC Bun schedules GC based on changes in RSS just a Zig wrapper Bun implements HTTP MySQL pg clients. JS/TS/CSS transpilers etc thinking they made JavaScript engine We didnt. But we do contribute. https://x.com/bunjavascript/status/2010933884196962724s=46&t=0Uhw6mmGT650_9M2pXUsCw In [----] Bun was the 3rd largest contributor to JavaScriptCore - the JavaScript engine powering Safari & Bun Thanks to @__sosukesuzuki https://t.co/gLzhY9Gmqi https://x.com/bunjavascript/status/2010933884196962724s=46&t=0Uhw6mmGT650_9M2pXUsCw In [----] Bun was the 3rd largest contributor"
X Link 2026-02-05T04:17Z 153.9K followers, 66.1K engagements

"What year will lots of devtools stop supporting macOS x64 [----] [----] View results [----] [----] [----] View results 2028"
X Link 2026-02-05T07:07Z 154.3K followers, 17.3K engagements

"The last Intel Mac came out in [----] Context: we have some tests that are flaky only on macOS x64. Can only debug by SSHing into very slow machines"
X Link 2026-02-05T07:13Z 154.1K followers, 13.2K engagements

"@mmkalmmkal I think this is reasonable to add but can you not tweet stuff that isnt true This is not coming in the next version of Bun"
X Link 2026-02-05T08:38Z 153.7K followers, [----] engagements

"@JosephVitko Thanks but the claude code team did plenty of stuff too and tbh [--] is not nearly enough. The bottleneck should be on the processes claude code spawns to build/verify the changes work and not claude code. Anything less is not good enough"
X Link 2026-02-06T01:05Z 154.1K followers, 10.8K engagements

"Heres why you should never do any of those things. readFileSync(path).slice(0 max) this reads the ENTIRE file in memory. then it keeps it in memory because of the sliced string. so if thats a [---] MB file and you only want [----] characters then youre still using [---] MB"
X Link 2026-02-07T14:13Z 155.4K followers, 13.9K engagements

"@tobi some of them read my tweets so im hoping they see this"
X Link 2026-02-07T14:21Z 154K followers, [----] engagements

"@ibuildthecloud one of the things that makes claude code a special product: everything is open to change. so I would not expect what youre seeing right now to still feel like this in a month or two. plan agent & the clear context thing are both pretty new too (I personally like clear context)"
X Link 2026-02-08T13:34Z 154.2K followers, 10.4K engagements

"@nishimiya sorry about this. can you run claude version and also claude update weve fixed a few things causing this last week but Im not confident all are fixed"
X Link 2026-02-09T15:26Z 154.2K followers, 26.4K engagements

"@mrpancakes39 Apple makes faster CPUs than AMD"
X Link 2026-02-10T08:46Z 154.4K followers, [----] engagements

"Bun's new Markdown parser has builtin support for rendering to React"
X Link 2026-01-29T04:42Z 155.9K followers, 151.5K engagements

"In the next version of Bun You can: - bun --parallel a.ts b.ts - bun --sequential seed app.ts - bun --parallel --filter='' 'build:'"
X Link 2026-01-29T11:43Z 155.9K followers, 63.1K engagements

"I do think its possible for large React TUIs to spend 0.1-ish ms per frame rendering (without relying on alt screen) Too many layers in-between right now though App React TUI Renderer Yoga TUI Renderer node:readline node:stream Buffer stdout/stdin"
X Link 2026-02-02T11:50Z 155.9K followers, 216.4K engagements

"reading LLM-generated usage of node:fs is still very painful so much readFileSync(path).slice(0 max) so much if (existsSync(path)) statSync(path) so much readdirSync(path).map(_ = unlinkSync(_))"
X Link 2026-02-07T14:10Z 155.9K followers, 87.7K engagements

"Ive been using this and it is incredible The bottleneck for a lot of projects becomes asking Claude to do things instead of waiting for Claude to do things Our teams have been building with a 2.5x-faster version of Claude Opus [---]. Were now making it available as an early experiment via Claude Code and our API. Our teams have been building with a 2.5x-faster version of Claude Opus [---]. Were now making it available as an early experiment via Claude Code and our API"
X Link 2026-02-07T21:48Z 155.9K followers, 41.5K engagements

"Bash tool is also a bottleneck. If your builds arent instant then you are spending a lot of time waiting for scripts to run"
X Link 2026-02-07T21:52Z 155.9K followers, 12.6K engagements

"In the next version of Bun Bun gets bundler & runtime support for ECMAScript Decorators and accessors"
X Link 2026-02-10T06:34Z 155.9K followers, 32.1K engagements

"I dont love the UX of worktrees co-located LLM transcripts feel like the feature of the version control system that replaces git. commits & tags are zoom levels for context. I think PRs and CI as this step completely independent from local dev doesnt make sense anymore"
X Link 2026-02-12T11:01Z 155.9K followers, 61.4K engagements

"@inerati I did this the other day entirely from Claude iOS app including pushing to GitHub (which deploys it)"
X Link 2026-02-13T19:39Z 155.9K followers, [----] engagements

"its running"
X Link 2026-02-14T23:22Z 155.9K followers, [----] engagements

"People frequently ask: How is Bun sustainable If I bet my companys tech stack on Bun will Bun still be around in a few years We didnt have a great answer to this question until today Bun is joining Anthropic https://t.co/06NlXDZhNE Bun is joining Anthropic https://t.co/06NlXDZhNE"
X Link 2025-12-02T18:05Z 155.9K followers, 817.6K engagements

"Why is pasting into VSCode Terminal slow Because it sleeps for 5ms every [--] characters"
X Link 2025-12-12T03:15Z 155.9K followers, 2.8M engagements

"Yeah Claude Code today is slow and uses too much memory Will fix We apparently live in the clown universe where a simple TUI is driven by React and takes 11ms to lay out a few boxes and monospaced text. And where a TUI "triggers garbage collection too often" in its "rendering pipeline". And where it flickers if it misses its "frame budget". We apparently live in the clown universe where a simple TUI is driven by React and takes 11ms to lay out a few boxes and monospaced text. And where a TUI "triggers garbage collection too often" in its "rendering pipeline". And where it flickers if it"
X Link 2026-01-30T08:57Z 155.9K followers, 522K engagements

"@badlogicgames I think its the filename and its because we still havent ported the libuv code for changing the current process.title on macOS in Bun There was a PR to do this but it had some issue and current claude setup is Linux only so I cant just use our discord bot to do it"
X Link 2026-02-06T09:42Z 155.9K followers, [----] engagements

"I didnt put much effort into the harness. I think that was my main mistake. I mostly just said Continue after giving it tests and having it port prettiers document IR"
X Link 2026-02-06T10:31Z 155.9K followers, 11.6K engagements

"The main gaps in Buns parser for this right now: - TypeScript AST nodes. We skip TypeScript without tracking the original AST nodes. - cant attach comments to expressions Both are fixable"
X Link 2026-02-06T10:39Z 155.9K followers, 11.2K engagements

"Bash tool is also a bottleneck in Claude Code right now when the command outputs large strings. We are working on a fix"
X Link 2026-02-07T22:04Z 155.9K followers, 11.5K engagements

"i love watching numbers go up/down Jan 19: [---] lbs Feb 7: [---] lbs ( -7% ) goal is like [---] lbs which was me at [--]. timeline is probably August / Sept"
X Link 2026-02-08T05:45Z 155.9K followers, 62.5K engagements

"In the next version of Bun Bun gets a built-in native Markdown parser - a Zig port of the popular md4c library"
X Link 2026-01-29T04:23Z 155.9K followers, 151.3K engagements

"Bun.markdown.html renders Markdown to HTML 9x faster than the popular marked npm package"
X Link 2026-01-29T21:04Z 155.9K followers, 20K engagements

"Bun's monthly downloads grew 36% last month"
X Link 2026-02-03T08:26Z 155.9K followers, 34.7K engagements

"@adamdotdev This adult in the room framing is pretty rude to the Claude Code team that built a product hitting $1B run-rate revenue faster than probably anything in history. Bun made like $2.50 total (stickers). Engineering is relative to time & tradeoffs & they made fantastic tradeoffs"
X Link 2026-02-04T11:13Z 155.9K followers, 452.6K engagements

"Previously Bun only supported the deprecated TypeScript experimentalDecorators. Now it supports both variants of decorators"
X Link 2026-02-10T06:35Z 155.9K followers, [----] engagements

"@thdxr Its really strange because we dont see an increase in crashes overall in automated crash reporting (its lower) I havent seen a minimal reproduction for the specific crash your users report and both I and Claude have attempted to fix (its a bun shell issue) unsuccessfully"
X Link 2026-02-12T18:48Z 155.9K followers, 44.3K engagements

"In the next version of Bun Bun.cron(file schedule name) schedules a function to be called on a recurring interval"
X Link 2026-02-13T11:59Z 155.9K followers, 88.3K engagements

"This uses your operating systems scheduler so it doesnt need to keep the process running to schedule a job but each invocation is run as a separate process This is useful for CLIs or long-running servers that perform regular but infrequent cleanup"
X Link 2026-02-13T12:08Z 155.9K followers, 14.5K engagements

"@inerati The old one said I was making a game which was out of date by like 6+ years and people kept asking what the game was"
X Link 2026-02-13T19:41Z 155.9K followers, [----] engagements

"@3p3r_ setInterval Thats not how this works which is why this is a runtime API. setInterval only runs if your process stays alive. Bun.cron uses your operating systems scheduler. Your operating system spawns your script at the right time without needing to keep it running"
X Link 2026-02-13T21:09Z 155.9K followers, [----] engagements

"In the next version of Claude Code Claude Codes Bash tool runs faster and uses less memory. Claude writing [--] GB to stdout [--] times: Before: [---] seconds After: [--] seconds (7x faster)"
X Link 2026-02-14T05:05Z 155.9K followers, 561.9K engagements

"This will also impact Claude Agent SDK & Cowork"
X Link 2026-02-14T05:07Z 155.9K followers, 26.8K engagements

"@qethull Claude wrote the code"
X Link 2026-02-14T09:07Z 155.9K followers, [----] engagements

"if you have a bun GitHub issue open for awhile with a clear reproduction reply with a link below & I will have Claude try to fix it today"
X Link 2026-02-14T23:02Z 155.9K followers, 33.8K engagements

"@damageboy @AnthropicAI Claude wrote the code for this performance improvement. Engineering is about time & tradeoffs. Claude Code recently passed $2.5bn in revenue run rate. IMO the team continues to make fantastic engineering tradeoffs"
X Link 2026-02-15T04:04Z 155.9K followers, 23.3K engagements

"@RhysSullivan I think theres still a lot to be improved here For buns repo we rarely merge AI-generated code if none of the tests fail with the previous version of bun"
X Link 2026-02-15T04:57Z 155.9K followers, [----] engagements

"macOS has an "IORWLock" on openat(2) your $5000 computer is only capable of opening [--] file at a time"
X Link 2025-02-22T07:06Z 155.8K followers, 247.8K engagements

"what if the condition import attribute let you disable an import based on the environment"
X Link 2025-06-21T08:49Z 155.7K followers, 16.4K engagements

"In the next version of Claude Code Reduced CPU usage by (1) consolidating timers (2) slightly slowing timers when not focused"
X Link 2026-02-03T04:19Z 155.8K followers, 149.9K engagements

"It's possible. We have this code in bun's install script. Maybe we need an equivalent for cc: if $target = darwin-x64 ; then # Is this process running in Rosetta # redirect stderr to devnull to avoid error message when not running in Rosetta if $(sysctl -n sysctl.proc_translated 2/dev/null) = [--] ; then target=darwin-aarch64 info "Your shell is running in Rosetta [--]. Downloading bun for $target instead" fi fi https://twitter.com/i/web/status/2019507726494368252 https://twitter.com/i/web/status/2019507726494368252"
X Link 2026-02-05T20:25Z 155.9K followers, [---] engagements

"@var_epsilon this will be fixed soon"
X Link 2026-02-11T09:53Z 155.9K followers, 13.1K engagements

"Bun [---] is compiling https://www.youtube.com/watchv=BsnCpESUEqM https://www.youtube.com/watchv=BsnCpESUEqM"
X Link 2023-09-07T17:03Z 155.9K followers, 558.2K engagements

"yay 80k yay buns private repo hit [---] https://t.co/Bdpk2qXzZW yay buns private repo hit [---] https://t.co/Bdpk2qXzZW"
X Link 2025-08-26T11:07Z 155.9K followers, 65.7K engagements

"Bun.markdown.react server-side renders markdown with React 13x faster than the popular react-markdown npm package"
X Link 2026-01-29T20:42Z 155.9K followers, 110K engagements

"Here's a [--] GB memory reduction for very long Claude Code sessions Before: () = controller.abort() Fix: controller.abort.bind(controller)"
X Link 2026-02-01T05:01Z 155.9K followers, 1.5M engagements

"85% of Prettiers JavaScript snapshot tests pass in a new bun fmt subcommand written in Zig powered by Buns parser & AST generated by running Opus [---] in a loop. I feel like 85% isnt high enough to release though. Maybe Ill try having it rewrite oxfmt in Zig instead"
X Link 2026-02-06T10:29Z 155.9K followers, 69.9K engagements

"I still need to do something about being bald"
X Link 2026-02-08T06:01Z 155.9K followers, 32.7K engagements

"Similar improvement on Linux though the optimizations were different"
X Link 2026-02-09T23:03Z 155.9K followers, 65.1K engagements

"@theo A speculative fix for this bug was merged on February 7th (v2.1.38) but the team was unable to reproduce it so it might still be happening. What version are you on"
X Link 2026-02-12T00:35Z 155.9K followers, 21.5K engagements

"@deebovv /mcp is a special one Are other slash commands that slow or just /mcp"
X Link 2026-02-13T12:28Z 155.9K followers, 11K engagements

"X is using Bun in production This was also the first production deployment of @bunjavascript at X. We chose Bun because it is the most performant and developer-friendly JavaScript runtime in our testing. We released the portal built on this system to all users at X and the system handled it gracefully. This was also the first production deployment of @bunjavascript at X. We chose Bun because it is the most performant and developer-friendly JavaScript runtime in our testing. We released the portal built on this system to all users at X and the system handled it gracefully"
X Link 2024-08-10T21:11Z 155.9K followers, 83.4K engagements

"GitHub please dont nerdsnipe us into building BunHub"
X Link 2025-07-17T21:45Z 155.9K followers, 93K engagements

"With bun init --react this lets Claude Code read browser console logs & debug frontend code Claude Code can now handle long-running tasks in the background. Start your dev server run tests or build your project without blocking your workflow https://t.co/Xm4897eTKu Claude Code can now handle long-running tasks in the background. Start your dev server run tests or build your project without blocking your workflow https://t.co/Xm4897eTKu"
X Link 2025-08-10T06:00Z 155.9K followers, 178.3K engagements

"half of buns team is here on visas. its already very difficult to find great engineers. please dont make it harder"
X Link 2025-09-21T13:13Z 155.9K followers, 2.3M engagements

"We are hiring [--] systems engineers to build the future of JavaScript Strong background in Zig C++ C or Rust required. We are in-office [--] days/week in San Francisco Email careers@bun.com with some background about yourself and why you want to join Bun"
X Link 2025-10-27T19:18Z 155.9K followers, 251K engagements

"In the last [--] hrs the team has landed PRs to Claude Code improving cold start time by 40% and reducing memory usage by 32% - 68%. Its not yet where it needs to be but its getting better. Yeah Claude Code today is slow and uses too much memory Will fix Yeah Claude Code today is slow and uses too much memory Will fix"
X Link 2026-01-31T08:52Z 155.9K followers, 349.5K engagements

"In the next version of Bun Bun's event loop loops 2x faster on macOS"
X Link 2026-02-09T22:59Z 155.9K followers, 616.5K engagements

"In the next version of Bun Bun's bundler & frontend dev server gets automatic barrel-file optimization. This makes libraries like lucida-react build up to 2x faster"
X Link 2026-02-12T02:47Z 155.9K followers, 23.1K engagements

"I dont think this should be built on top of git. It should be its own thing. Probably needs to have an adapter for git or you get [--] users. jj sounds cool Not building this just thinking aloud"
X Link 2026-02-12T11:01Z 155.9K followers, 17.1K engagements

"@glcst its very good at this"
X Link 2026-02-15T00:45Z 155.9K followers, [----] engagements

"@RhysSullivan I think PR-scoped code coverage is also a good idea but havent merged this in to bun test yet Basically: if the new changes do not get run in the tests it wrote CI should fail"
X Link 2026-02-15T04:59Z 155.9K followers, [----] engagements

"the team fixed issues addressing over [----] 👍 reactions this is a big release for bun install Bun v1.2.19 - Fixes [---] issues addressing [----] 👍 - bun install --linker=isolated : pnpm-style isolated symlink installs - bun update --interactive - bun why pkg - VSCode test explorer integration - Bun.sql gets faster - --console-depth https://t.co/lSaJkw0AHE Bun v1.2.19 - Fixes [---] issues addressing [----] 👍 - bun install --linker=isolated : pnpm-style isolated symlink installs - bun update --interactive - bun why pkg - VSCode test explorer integration - Bun.sql gets faster - --console-depth"
X Link 2025-07-19T12:49Z 124.6K followers, 22.5K engagements

"Ive been somewhat against this but Im coming around to the idea. I also think its really easy for us to add"
X Link 2025-07-19T14:05Z 124.8K followers, [----] engagements

"@jullerino @bunjavascript did the release break anything for you"
X Link 2025-07-19T15:05Z 124.7K followers, [---] engagements

"filming for Bun v1.3 next week"
X Link 2025-07-20T12:52Z 124.8K followers, 29.7K engagements

"seeing properly used AI coding tools make junior engineers massively more productive not convinced companies will hire fewer junior engineers going forward. i do think companies will hire fewer engineers who dont use ai tools though"
X Link 2025-07-20T14:40Z 124.9K followers, 27.9K engagements

"imagine how ridiculous it would seem today to refuse to send email and only send physical mail"
X Link 2025-07-20T14:40Z 124.7K followers, [----] engagements

"what does properly used mean does it know how to build & test the code can it do that without you pressing approve each time are errors compact enough to avoid bloating context window did you tell it which files to look at and provide examples in your initial prompt Etc"
X Link 2025-07-20T14:49Z 124.9K followers, 10.1K engagements

"@rfxkairu Yeah definitely. But senior engineers too unless theyre about as productive as me before ai tools"
X Link 2025-07-20T14:54Z 124.3K followers, [---] engagements

"Ive also seen candidates blindly copy paste from terminal to ChatGPT in their browser and back repeatedly without reading or trying to understand. this is slow and doesnt work very well. It needs direct terminal access and you need to read & understand closely what its doing"
X Link 2025-07-20T15:30Z 124.5K followers, [----] engagements

"this week were making bun use up to 10x less memory in long-running servers"
X Link 2025-07-21T16:33Z 124.8K followers, 41.5K engagements

"particularly servers that use lots of async/await involving multithreaded I/o like fs or fetch"
X Link 2025-07-21T16:45Z 124.8K followers, 10.4K engagements

"claude started hallucinating reporter=verbose after this sometimes and now I wonder if that should be the way to enable verbose output to disable this In the next version of Bun bun test output is more compact when run in ai agents like Claude Code conserving context window https://t.co/VzGIk0vhgP In the next version of Bun bun test output is more compact when run in ai agents like Claude Code conserving context window https://t.co/VzGIk0vhgP"
X Link 2025-07-22T14:52Z 124.8K followers, 18.3K engagements

"Buns 10th parser coming next week"
X Link 2025-07-24T00:59Z 124.8K followers, 18.8K engagements

"Bun v1.2.20 ships tomorrow. One of the last before Bun v1.3"
X Link 2025-07-25T07:25Z 125.3K followers, 25.1K engagements

"My guess is therell be [--] maybe [--] more before Bun v1.3. We have a couple features left to include in the release and then invest more time upfront before Bun v1.3 on stability"
X Link 2025-07-25T07:27Z 125K followers, [----] engagements

"I havent said a date yet because I want it to be feature complete and then we delay it to give ourselves time to fix old bugs that have lingered too long. Bun v1.1.1 and Bun v1.2.1 were both much more reliable than Bun v1.1.0 and Bun v1.2.0. That means we need to plan better"
X Link 2025-07-25T07:32Z 125K followers, [----] engagements

"@dboskovic @kevinrwhitley @github @bunjavascript can you run verbose and then we can see if its postinstall or if its something else"
X Link 2025-07-25T20:44Z 124.5K followers, [--] engagements

"We filmed the Bun v1.3 video today"
X Link 2025-07-26T02:14Z 129.7K followers, 266.8K engagements

"@mitsuhiko @BenjDicken you could have an event loop per thread (like JavaScript) but thats honestly slower than having many threads polling and work split between them which is what youd do for a multi-threaded language"
X Link 2025-07-26T08:37Z 124.6K followers, [---] engagements

"@NeoterismoiTaki @bunjavascript If youre passing ArrayBuffer or typed arrays make sure theres a reference to the typed array after the FFI call so that it doesnt get GCd"
X Link 2025-07-28T17:51Z 124.8K followers, [----] engagements

"Uses Bun and Zig we are officially working on opentui - a library for building terminal UIs in typescript it is built on the work of kmdrfx - we are sponsoring him to solve this problem once and for all clip is not sped up and it's running entirely in the terminal - link to repo in reply https://t.co/2s14mabsmk we are officially working on opentui - a library for building terminal UIs in typescript it is built on the work of kmdrfx - we are sponsoring him to solve this problem once and for all clip is not sped up and it's running entirely in the terminal - link to repo in reply"
X Link 2025-07-29T16:29Z 125.4K followers, 23.3K engagements

"Today for building full-stack apps there are two extremes - productive at backend harder to write modern frontend - productive at frontend harder to write backend In Bun v1.3 Buns Rendering API unlocks a third option According to twitter: - Rails is dead fat and slow - Next js is the future fast and efficient According to my laptop dev env: - rails api - 255mb ram - next js frontend - 2.6gb ram According to twitter: - Rails is dead fat and slow - Next js is the future fast and efficient According to my laptop dev env: - rails api - 255mb ram - next js frontend - 2.6gb ram"
X Link 2025-07-31T14:35Z 125.5K followers, 83.5K engagements

"okay @claudeai implement a yaml parser in zig. dont make any mistakes"
X Link 2025-08-01T17:58Z 125.4K followers, 11.7K engagements

"imo the bottleneck for using LLMs today is how do I give it the right context & feedback loop to do this well and not can it do this"
X Link 2025-08-04T05:11Z 126K followers, 53.3K engagements

"In the next version of Bun bun --inspect-browser script opens the debugger in the browser saving you [--] click"
X Link 2025-08-04T07:25Z 125.9K followers, 14.3K engagements

"this is the same as doing --inspect-wait and then clicking the url in your terminal"
X Link 2025-08-04T07:25Z 125.8K followers, [----] engagements

"@atbeme @bunjavascript memory allocator upgrade is causing a regression that reproduces in larger apps we are still investigating a fix"
X Link 2025-08-06T21:20Z 125.7K followers, [---] engagements

"@JustVibesFyi It definitely should work for bun run dev or with a single command for builds. Did you use bun init react=tailwind or bun init react=shadcn or set it up manually Is there a bunfig.toml specified"
X Link 2025-08-08T20:25Z 125.8K followers, [---] engagements

"How to do this: [--]. bun init --react [--]. Ask claude to run bun dev [--]. press ctrl + b to run in background To use without bun init --react enable streaming browser console logs to the terminal via passing development: console: true to Bun.serve()"
X Link 2025-08-10T06:10Z 126.6K followers, 13K engagements

"The next release will have at least [--] things people have been asking us for years now"
X Link 2025-08-10T12:32Z 126.2K followers, [----] engagements

"are there any downsides to doing this"
X Link 2025-08-11T13:20Z 126.3K followers, [----] engagements

"@yacineMTB I still think doing this but at a larger scale is under explored. With the right prompting & context & tools how many of the [----] open issues in Bun can we fix And if not fix at least attempt to reproduce and leave a comment updating the status for the current version of Bun"
X Link 2025-08-11T16:24Z 126K followers, 18.6K engagements

"one of the cool things about how this works single file executables use a custom zero-copy binary archive format to embed the code the bytecode sourcemaps compressed with zstd native addons and arbitrary files. buns bundler minifier transpiler runs on your source code. 💡bun build --compile lets you generate standalone executables from TS/JS bundles all imported files/packages + bun runtime single binary cross-compile Linux/macOS/Windows embed files SQLite Workers supports full-stack apps (server + client code) https://t.co/VfAUWxK7s6 💡bun build --compile lets you generate standalone"
X Link 2025-08-11T18:15Z 126.4K followers, 48.4K engagements

"In the next version of Bun Reduced idle CPU usage"
X Link 2025-08-14T22:35Z 126.7K followers, 21.9K engagements

"having a claude code bot is so useful"
X Link 2025-08-15T09:14Z 126.9K followers, 73.1K engagements

"In the next version of Bun --compile-exec-argv=options embeds CLI arguments into compiled executables"
X Link 2025-08-16T10:14Z 126.6K followers, 14.4K engagements

"@RhysSullivan nice. you could increase the information density a bit if you avoid the embeds and send multiple messages instead and use reactions to indicate progress / error"
X Link 2025-08-17T00:49Z 126.4K followers, [----] engagements

"expecting 2/3 of the new features for Bun v1.3 to ship this coming week"
X Link 2025-08-17T23:58Z 126.7K followers, 13.8K engagements

"Sosuke is one of JavaScriptCores most prolific contributors and will help us make JavaScript faster and Bun more compatible with Node"
X Link 2025-08-18T11:38Z 126.9K followers, 72.4K engagements

"This is something thats bothered me for years Why is it normal for CLI tools to stick API keys in some text file in your home directory In the next version of Bun Bun.secrets makes it easy for CLI tools to securely store credentials using the operating system instead of plaintext config files https://t.co/zRTjGz2vWh In the next version of Bun Bun.secrets makes it easy for CLI tools to securely store credentials using the operating system instead of plaintext config files https://t.co/zRTjGz2vWh"
X Link 2025-08-19T10:39Z 126.8K followers, 75.3K engagements

"Why is it normal to globally pass credentials to every script that runs in your terminal through environment variables"
X Link 2025-08-19T10:39Z 126.6K followers, [----] engagements

"The answer: because using operating system APIs designed to do this properly was more work for the developer than saving it to a text file Now it isnt"
X Link 2025-08-19T10:39Z 126.7K followers, [----] engagements

"One of many great decisions in Ruby on Rails ActiveRecord: builtin adapters for Postgres SQLite and MySQL Now Bun has [--] of those and tomorrow were getting a 3rd In the next version of Bun Bun.SQL now supports SQLite alongside PostgreSQL. https://t.co/V7JOygZW7i In the next version of Bun Bun.SQL now supports SQLite alongside PostgreSQL. https://t.co/V7JOygZW7i"
X Link 2025-08-21T03:13Z 127.1K followers, 74.9K engagements

"Bun v1.2.21 ships tomorrow"
X Link 2025-08-21T13:16Z 126.9K followers, 14.3K engagements

"@thdxr people like faster horses"
X Link 2025-08-21T16:09Z 126.7K followers, [----] engagements

"still one other thing were hoping to include in the Bun v1.2.21 release"
X Link 2025-08-22T11:45Z 127K followers, 12.8K engagements

"@r0derik Were saving the biggest thing for last (and this isnt it)"
X Link 2025-08-22T12:16Z 126.7K followers, [---] engagements

"sourcemaps use too much memory in bun right now what are some good approaches to take inspiration from"
X Link 2025-08-24T00:23Z 127.3K followers, 24.5K engagements

"I think some block-based approach where you keep an index of all the VLQ state every N lines would probably be a good middleground but I feel like someone else has experimented with this before and it would be nice to see what other people have done before further experiments"
X Link 2025-08-24T00:23Z 127.1K followers, [----] engagements

"I have a branch its basically done except for Linux Linux clipboard APIs are not great"
X Link 2025-08-25T12:42Z 127.1K followers, [----] engagements

"yeah we don't explain the full-stack part of single-file executables well right now"
X Link 2025-08-26T06:53Z 127.3K followers, 25.7K engagements

"Bun v1.2.22 ships tomorrow"
X Link 2025-08-29T04:14Z 127.5K followers, 16.5K engagements

"@jimmykoppel @bunjavascript Sorry about this. This looks like an issue with the repl. We need to redo that. The repl currently runs bunx bun-repl which is why it ends up adding the folder for the repl in PATH"
X Link 2025-09-02T06:28Z 127.7K followers, 15K engagements

"After Bun v1.3 you will see much more of this My stack to build web app now @bunjavascript frontend: bun backend: bun database: bun server: bun My stack to build web app now @bunjavascript frontend: bun backend: bun database: bun server: bun"
X Link 2025-09-02T06:45Z 127.7K followers, 46.7K engagements

"fun bug: process.memoryUsage.rss() on macOS in child processes of Bun spawned via Bun.spawnSync report higher memory usage than when spawned via Bun.spawn. Can you guess why"
X Link 2025-09-02T23:43Z 127.7K followers, 15.9K engagements

"@worm_emoji if you only DoorDash/ubereats it saves even more time"
X Link 2025-09-07T20:44Z 127.5K followers, [----] engagements

"what if bun stats"
X Link 2025-09-08T03:01Z 127.8K followers, 43.3K engagements

"@thehungrybird_ @dok2001 @bunjavascript Cloudflare Workers designs for multi-tenancy like phpmyadmin shared webhosting of the 2000s except for JavaScript. This imposes very different security & performance design constraints - stuffing as many different customers on the same machine as possible without them noticing"
X Link 2025-09-08T19:12Z 127.8K followers, [---] engagements

"What else should we add to this list Bun has fast builtin alternatives for popular npm packages like: strip-ansi Bun.stripANSI string-width Bun.stringWidth escape-html Bun.escapeHTML execa Bun.$ better-sqlite3 bun:sqlite Fewer dependencies is good for supply-chain security Bun has fast builtin alternatives for popular npm packages like: strip-ansi Bun.stripANSI string-width Bun.stringWidth escape-html Bun.escapeHTML execa Bun.$ better-sqlite3 bun:sqlite Fewer dependencies is good for supply-chain security"
X Link 2025-09-09T19:07Z 127.8K followers, 26.4K engagements

"@thdxr ugh I know but were going to put it off for as long as we can"
X Link 2025-09-10T00:30Z 127.7K followers, 10.4K engagements

"A CLI flag for bun build that rewrites imports of strip-ansi string-width better-sqlite3 etc to native versions when target: bun should be called --bunnyfill --nativefill View results / suggest --bunnyfill --nativefill View results / suggest"
X Link 2025-09-10T10:35Z 127.9K followers, 11.7K engagements

"In the next version of Bun When AI agents like claude code run bun test with a filter that finds [--] matches the error reminds them the current working directory"
X Link 2025-09-11T01:08Z 127.9K followers, 21.2K engagements

"Part of the reason for this also is to remind it can use cwd to set the cwd"
X Link 2025-09-11T01:28Z 127.8K followers, [----] engagements

"This release fixes many issues and makes stacktraces a lot better The biggest new feature of Bun v1.3 will land in the next version of Bun as feature-complete but unstable so it can have more time to bake before [---] Bun v1.2.22 - Fixes [---] issues (addressing [---] 👍) - Async stack traces - Bundler & minifier improvements - Several MySQL client bugfixes - WebSocket client .protocol fix - Many node.js compatibility improvements & bugfixes Thanks to [--] contributors https://t.co/xrINIjVTIH Bun v1.2.22 - Fixes [---] issues (addressing [---] 👍) - Async stack traces - Bundler & minifier improvements -"
X Link 2025-09-14T13:51Z 127.9K followers, 30.4K engagements

"@pomogajko @bunjavascript can you try Elysia instead of Hono Heard a few times now that switching to Elysia reduced memory usage / fixed leaks. Also can you try the non-alpine build like the default one Alpine is slower because it optimizes for image size instead of runtime performance"
X Link 2025-09-16T20:17Z 128.7K followers, 15.2K engagements

"@thdxr @Desteban13 yeah but how is that different than MCP"
X Link 2025-09-18T10:25Z 128K followers, [----] engagements

"i guess it would mean you could do curl --compressed https://cdn.js/abc123.js bun - i can imagine some serverless-like usecases potentially benefiting from some form of this"
X Link 2025-09-18T10:38Z 128.8K followers, [----] engagements

"@GergelyOrosz - We are optimizing JavaScripts error messages for LLMs (see below) - Buns standard library includes everything from a YAML parser to a frontend dev server to a C compiler - You dont need many npm packages when you use Bun Always bet on JavaScript https://x.com/jarredsumner/status/1969004182565998990s=46&t=0Uhw6mmGT650_9M2pXUsCw In the next version of Bun The error message for incorrectly escaped backticks & quotes is better https://t.co/tWz3wyQ6AO https://x.com/jarredsumner/status/1969004182565998990s=46&t=0Uhw6mmGT650_9M2pXUsCw In the next version of Bun The error message for"
X Link 2025-09-19T13:41Z 128.7K followers, 18K engagements

"@mickrich384 @GergelyOrosz Bun has builtin FFI when you dont want to deal with NAPI. FFI works with all languages that support the C calling convention including Rust https://bun.com/docs/api/ffi https://bun.com/docs/api/ffi"
X Link 2025-09-19T13:46Z 128.6K followers, [---] engagements

"Bun v1.2.24 ships late tonight"
X Link 2025-09-19T19:36Z 129K followers, 25.8K engagements

"@kamikaz1_k It should be easier to get talented people visas to come and work in the United States. Talented hard-working people who move here make this country better"
X Link 2025-09-21T14:01Z 129.1K followers, 50.6K engagements

"@rauchg Making it harder to get an H-1B moves the overton window towards making it harder to get an O-1 and it really doesnt need to be any harder to get an O-1 visa"
X Link 2025-09-21T23:00Z 129.1K followers, 32.3K engagements

"@CtrlAltDwayne @theo @boneGPT jarred hires people on visas to save money nope. everyone is on the same pay scale. hates america please stop making assumptions"
X Link 2025-09-22T03:14Z 128.7K followers, [---] engagements

"@boneGPT just an abstraction layer on top of the tools we already have Wrong. Bun's JavaScript & CSS parser/transpiler bundler runtime test runner package manager json toml and yaml parsers shell interpreter and so much more was largely written from scratch"
X Link 2025-09-22T07:07Z 128.7K followers, [----] engagements

"In the next version of Bun bun install supports --os and --cpu flags to install platform-specific dependencies for different targets than the current one"
X Link 2025-09-22T10:32Z 129.2K followers, 27.9K engagements

"guess whats new in bun install in v1.2.23"
X Link 2025-09-26T13:19Z 129.5K followers, 43.7K engagements

"bun install can migrate pnpm-lock.yaml - bun.lock 4x faster than pnpm prints its version number"
X Link 2025-09-27T09:54Z 129.5K followers, 34.4K engagements

"and that lets us have a great developer experience with excellent performance"
X Link 2025-09-27T12:40Z 129.2K followers, 11.6K engagements

"@charliermarsh @zeeg @threepointone vercel.json checks for their exact Accept header and redirects to .md version"
X Link 2025-09-27T22:41Z 129K followers, [----] engagements

"@grok @realMastana What compatibility quirks are you referring to"
X Link 2025-09-27T23:06Z 129K followers, [---] engagements

"@iommi_mandela what are we doing wrong"
X Link 2025-09-28T03:23Z 129.1K followers, 31.1K engagements

"@DuaneAdam @iommi_mandela benchmarks are about the same package manager you didnt see a meaningful speed improvement for installing packages"
X Link 2025-09-28T06:26Z 129K followers, [----] engagements

"our process for writing the release notes has changed a lot in the last [--] months Now its: 1) for each commit send the code + message + github PR and linked issues to Gemini [---] to read and decide if paragraph-worthy or bullet point worthy or if its a CI thing to skip and write an initial draft. Post processing step includes the commit link associated in an HTML comment for us to verify. 2) use a keyword similarity sorter script to combine them into one file that loosely groups 3) spend about [--] hours editing and checking for accuracy doing it 100% manually used to take 4-6 hours and we"
X Link 2025-09-29T03:16Z 129.9K followers, 111.5K engagements

"its interesting that email has long supported multipart/alternative but html in web browsers do not Accept header is better for many cases but multipart would be another good approach When Claude Code fetches Buns docs Buns docs now send markdown instead of HTML by default This shrinks token usage for our docs by about 10x https://t.co/cvasTo6h43 When Claude Code fetches Buns docs Buns docs now send markdown instead of HTML by default This shrinks token usage for our docs by about 10x https://t.co/cvasTo6h43"
X Link 2025-09-29T05:39Z 129.2K followers, 19.8K engagements

"multipart would mean sending both the markdown and the html. you could imagine in other cases you want to send a markdown and a json version one for human or LLM and another for scripting/APIs. maybe they have different data. like the json includes a list of code samples"
X Link 2025-09-29T05:39Z 129.2K followers, [----] engagements

"product I would beta test Do the e2e flow for agents to build stuff in existing codebases. Ban agents from pushing code that fails lints or without tests that 100% pass. No in a real implementation Code review builtin & automatic ideally before human review. Bulk task creation flow. Replace GitHub but integrate at first This isnt an indie hacker thing you probably need to raise money to have a shot at doing this well"
X Link 2025-09-29T12:57Z 129.5K followers, 13.2K engagements

"@mjackson await response.$(div .foo).innerText() would be cool and also not easy to implement"
X Link 2025-10-03T02:36Z 129.3K followers, [----] engagements

"@nicolasmelo No thats just a bug"
X Link 2025-10-05T00:13Z 129.4K followers, [----] engagements

"@ken_wheeler "when my javascript runtime started to slow down so did i""
X Link 2025-10-05T01:36Z 130K followers, [----] engagements

"its fun watching the bots go back and forth in code review"
X Link 2025-10-06T16:46Z 129.9K followers, 12.6K engagements

"there are two PRs blocking bun v1.3s release"
X Link 2025-10-08T14:02Z 129.9K followers, 36.1K engagements

"@adebola_io @bunjavascript can you give any more details any public repo we could look at or logs you could paste"
X Link 2025-10-10T21:52Z 129.9K followers, [----] engagements

"@mjackson be very careful with memory leaks & AbortSignal. Its so easy to create a memory leak . At minimum I suggest always specifying once: true"
X Link 2025-10-11T15:15Z 130.1K followers, 19.3K engagements

"@Himanshu77K @bunjavascript Corepack doesn't support Bun https://github.com/nodejs/corepack/issues/295 https://github.com/nodejs/corepack/issues/295"
X Link 2025-10-12T03:50Z 130K followers, [---] engagements

"@thdxr I think breaking changes are basically never worth it I expected this not to break as much stuff"
X Link 2025-10-14T05:09Z 130.1K followers, [----] engagements

"@Ex3NDR @thdxr first time anyone has asked me that"
X Link 2025-10-15T04:53Z 130.1K followers, [---] engagements

"@jaredpalmer suggestion bump the font-size on GitHub comments that are just a single emoji like 🎉 if you want to be extra cautious you could do it only for specific positive emoji"
X Link 2025-10-16T15:40Z 130.2K followers, [----] engagements

"@Uber So far they havent :("
X Link 2017-06-20T06:42Z 109.8K followers, [--] engagements

"@Uber Update: they have 😂"
X Link 2017-08-01T16:50Z 109.8K followers, [--] engagements

"jQuery(".user-actions").not(".muting").find(".mute-user-item").toArray().slice(0 10).forEach((element) = jQuery(element).trigger("click"))"
X Link 2018-03-24T18:48Z 107K followers, [--] engagements

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