Reading up on developer-tools

incredible algo update my timeline is full of makers building stuff I LOVE THAT AND I LOVE YOU ALL ❤️

@tibo_maker

please i'm begging you show me something you built not another "this is my custom agent setup" post where you pretend you're doing something smarter than vanilla claude code please

@thdxr

1/ Last week at @aiDotEngineer, I presented the 2026 AI Engineering Survey: 1,000+ AI engineers on model selection, build vs. buy, who’s shipping with AI, and (of course) whether GPUs are going to space. This year, we ran it with @NotionHQ and @vercel. Some highlights 🧵

@barrnanas

What Is a Software Factory?

@chamath

I built a software factory that actually works. Here's what I learned.

@piersonmarks

Hot takes on AI memory

@samzliu

Introducing shadcn/typeset. You know how you render markdown and get back plain, unstyled HTML? Headings, paragraphs, lists, tables. So you style the elements one by one: font sizes, line heights, spacing. You do it for your blog. Then you do it again for docs. Then again for the chat. Every time, you're fighting the same thing: sizing and spacing. To fix this, we created typeset.css: one file that styles everything inside a typeset container. It lives in your project, so you can change it directly when you need to. And we made it work beautifully with streaming markdown.

@shadcn

Codex for finding customers for your startup:

@gdb

http://knockoff.co is at around 75,000 daily active users! 🤯 a *browser extension*. absolutely bonkers.

@Shpigford

I made myself a personalized podcast player using @grok 4.5 and @perplexity_ai Computer It finds the top topics people are discussing on tech and business podcasts, then lets me play a single stream across multiple podcasts by topic. When you click PLAY DEEP-LINK STREAM, it plays me all the pods talking about China and open source (in the screenshot here) it's called PODMEME (after Techmeme, which is what i modeled it off of!) Thanks @AravSrinivas @elonmusk for the harness and model! Cost me 1,100 "credits" on Perplexity -- so $11! Not sure what it will cost to run this every 48 hours... but, I think worth it. I might actually output a custom MP4 file for each topic with an audio transition in the middle

@Jason

It works! AI labs started indexing, training, and serving my new *.md files ✨ Right after pushing to prod, I asked ChatGPT to check {{startup_markdown_URL}}, and it couldn't because of "cache missed" or "400 timeout fetching". So I added all 8,831 URLs to the sitemap.xml and added the following headers: "Content-Type": "text/plain; charset=utf-8" "Content-Disposition": "inline" I can't tell if this helped, but 24 hours later, ChatGPT was able to fetch them properly 😊 Maybe AI assistants need the page to be indexed first, before being able to crawl it?

@marclou

i've got multiple repos (a frontend and a backend) and I want claude to work across both of them at the same time. but i also want to use worktrees so i can work on multiple things at the same time. ...how? typically i'd go monorepo but one repo is OSS and one is not.

@Shpigford

THE CEO OF OBSIDIAN JUST OPEN-SOURCED THE CLAUDE CODE SKILLS HE WAS USING PRIVATELY IN HIS OWN VAULT. 40,000 STARS IN A FEW WEEKS 5 skills. 1 MIT license. 0 pitches kepano - the founder who wrote the "File over app" essay - dropped a set of Agent Skills that teach Claude Code to read and write Obsidian files the way a human expert would. Markdown that respects wikilinks. Bases queries Claude actually writes correctly JSON Canvas edits that don't corrupt the file. A defuddle skill that strips ads and boilerplate off any URL and drops a clean note into your vault. He built them for himself, tested them in his own workflow, then pushed the folder to GitHub every skill is one SKILL.md file. Drop the repo into .claude/skills/ and Claude Code picks them up automatically. No plugin store. No account. No cloud. Same idea that made Obsidian: your notes are files on your disk, the app is disposable, and the AI just learned to speak the format the essay was called "File over app". The workflow is now file over agent MIT-licensed. Shipped in his own name no vendor lock. no subscription. no cloud memory. no walled garden. no pitch to raise a round you're reading this on a device that could clone the repo, drop it into your vault, and have Claude Code editing your notes correctly before your next standup

@chewadot

TL;DR of my new article: I ran last30days on the 10 biggest trending GitHub repos of the month so you don't have to. 🎬 OpenMontage (+31.6K) - your coding agent makes a whole video from one prompt, free and local. By @calesthioailabs 🧠 codebase-memory-mcp (+26K) - indexes your repo into a graph so agents stop re-reading every file. One measured query: 80K tokens down to ~500.

@mvanhorn

this has 0 manual edit and was done by Fable with Revid MCP crazy simple to use the MCP 👇 https://www.revid.ai/mcp

@tibo_maker

great time to run “/impeccable live” on it! if you use impeccable and have never tried it, i encourage you to give it a try. will post video soon

@pbakaus

New skill: /apple-design Apple’s WWDC videos are a goldmine of knowledge. I’ve combed through my favorite ones and came up with 17 design and motion principles. Use them to review existing work or when working on something new to get it right. http://github.com/emilkowalski/skills

@emilkowalski

Today we're publicly launching Cloud Run sandboxes. Here, I start, execute, and stop 1,000 sandboxes in 5s with an average of 500ms latency:

@steren

A quick tour of the new ChatGPT Work.

@ChatGPTapp

You know a company is starting to lose the plot when they start publishing nonsense comparison pages. Who is juggling Linear, Jira, Rovo for AI, and Loom? 😂 (we still haven’t published a single comparison page)

@karrisaarinen

You can now vibe code a language model. From a single prompt, GPT‑5.6 built the entire training pipeline and trained a model from scratch on my iMessage history. Locally on my Mac. It now generates replies in my writing style.

@skirano

Introducing ChatGPT Work, a new agent in ChatGPT powered by Codex and GPT-5.6. It can take action across your apps and files, stay with a project for hours if needed, and turn a goal into finished work. It’s a whole new way to get work done.

@OpenAI

Fun (and functional!) new BC5 feature we just added to Card Tables today. We're calling it Wormholes. Here's how it works in a quick, casual 90 sec video.

@jasonfried

VERY COOL!! Thanks @jordandotbuilds for the tip, I can now test my iOS app on web I asked Claude Code to set up serve-sim, a web-based iOS simulator that can stream the iOS app my Claude Code on VPS built live to me, because it's on some Mac Mini in the cloud without even a GUI (it's headless) I cannot actually try it on the Mac itself! Before Claude would make me a page with screenshots but I had no idea how the app felt, now with this it works This is hosted on the Mac Mini via SSH (it shows localhost but it's a tunnel via SSH to the Mac Mini), bit laggy but nice!

@levelsio

Introducing a new way to reflect on how you use Claude. Your monthly recap shows when you use Claude most and what you spent that time working on, with options to set quiet hours and nudges to take breaks. Find your dashboard in Settings under Reflect: http://claude.ai/settings/reflect

@claudeai

I built a skill to let my Claude Code build premium landing pages like this in one shot. The 3 sites in the video are one-shot results, ~$10-15 each. Register @higgsfield_ai , install the CLI and scroll-world skill, hand the rest to Claude Code.

@the_cyw

New in Claude Code: /checkup Run /checkup to: 1. Clean up unused skills/MCPs/plugins and save context 2. Dedup your local CLAUDE.md against the checked in CLAUDE.md 3. Break up root CLAUDE.md into nested CLAUDE.md's + skills 4. Turn off slow hooks 5. Update your Claude Code to the latest version 6. Enable auto mode by default 7. Pre-approve frequently denied read-only commands .. And a few other goodies. /checkup confirms with you before making any changes. Enjoy!

@bcherny

I had Fable build another thing I always wanted, a full procedural fantasy kingdom generator with economics, trade routes, population growth, wars, lineages, and occasional dragons. First, I worked with it on a plan, then it made it. You can play it here: https://annals-kingdom.netlify.app/

@emollick

Introducing AI Browser Games! Watch open & closed models build small browser games head to head. Open models like Kimi K2.7 were faster, cheaper, & produced games similar to Opus 4.8. In some cases, open models were ~20x cheaper than closed ones too!

@nutlope

I'm open-sourcing my Agent Skills library. 75 skills for Codex, Claude Code, Cursor, and other agents, focused on web design, landing pages, motion, WebGL, UI styles, and assets. A few favorites: - Video to Super Prompt Turns a screen recording of a design, landing page, or animation into a super detailed prompt that Fable 5 can one-shot into HTML. - HTML to Interaction Prompts Takes an existing HTML page, like something built in Aura, and extracts prompts for sections, buttons, animations, WebGL effects, and interactions. - Stitched Full Page Capture Captures the entire landing page, not just the hero, so you can use the full page as a design reference. - Daily UI Inspiration Combines multiple skills into an agent loop that browses the web, captures great landing pages, and turns them into detailed prompt packs. It's free. Fork them and adapt for your own workflow.

@MengTo

mattpocock/skills v1.1 is out! - /wayfinder helps you plan more ambitious work than ever - /to-spec and /to-tickets replace /to-prd and /to-issues - /implement + /code-review complete the whole lifecycle - /research and /prototype help support wayfinder, or can be used independently - Crucial fixes to /grill-me Run npx skills@latest add mattpocock/skills to update!

@mattpocockuk

SCOOP: Perplexity is quietly building an AI coding tool that takes on Claude Code and Cursor. It's meant to build software end-to-end. The tool is being used internally (for now) under the codename 'Teammate.'

@CharlesRollet1

Open sourced all of my Notion Workers including my Twitter bookmarks sync https://github.com/colebemis/notion-workers

@colebemis

Git your clones ready. Marvin guides us into a new multiverse of coding soon. Let the rebellion begin. 🤖

@ashtom

Smol tip: /𝚏𝚘𝚛𝚔 is perfect for mid-task side quests. It spawns a subagent that inherits the whole conversation, runs in the background while you keep working on your main quest, and comes back with an update.

@delba_oliveira

Very excited to help chart the future of Git (and SCM generally) for the agentic future with Taylor!

@gdb

I can finally talk about 5.6. I’ve been testing it for months and, without exaggeration, it’s the best model I’ve ever used. Fast, smart, genuinely creative, and you guessed it, they finally fixed front-end design. I haven’t needed to check the code I’ve written in two months.

@skirano

I had early access to 5.6/Sol for ~month. Sol is my default. It is faster, plans/judges just as good as Fable, and I think produces better overall work. I’ll reach for Fable still for highly targeted debug or performance work with clear reward functions. A cheeky way I describe Sol vs Fable to my friends is that Sol is a charismatic, efficient, talented coworker you’re jealous of. Fable is a genius recluse that is brilliant at its fixations but doesn’t go out, doesn’t date, and you don’t want to hang out with them much lol. Fable is undefeated at highly targeted debug/security/performance goals. It’s a sight to behold and I was never able to get Sol to push as hard in this category. I’ll keep using it for this. Sol is better or comparable at everything else, in my experience. Give it a shot, it’s hard to describe but it’s just more enjoyable to work with. (Disclaimer I have no financial ties to either lab, wasn’t paid for any of this.)

@mitchellh

Big day! Claude Cowork is coming to web and mobile, so Claude can keep working while your computer is closed. This is a major update to Cowork. It combines the power of giving Claude access to your context, an advanced loop for long-running tasks, and the convenience of not needing your laptop to be open.

@felixrieseberg

I often work in multiple machines at the same time and started to mix up the screen shares, so built nameplate to make things very obvious. https://nameplate.sh

@steipete

🤯 Wow I can't believe I'm open sourcing the email platform we built internally. Self-hosted, runs on your own AWS SES. You pay @awscloud $0.10 per 1,000 emails instead of a SaaS markup, and your email data never leaves your infra. MIT licensed. Here's what it does 🧵

@vijaytupakula

Dumb question: I’ve been running most of my cron jobs locally on my Mac Mini because it’s already authenticated with Google Workspace and the other apps I use. But should I run these jobs in the cloud instead with these apps OAuth’d to my Claude or ChatGPT account? How should I think about what jobs should stay local vs. move to the cloud?

@petergyang

If you run this workflow, ask Fable to make codex the workhorse. https://github.com/steipete/agent-scripts/blob/main/skills/codex-first/SKILL.md

@steipete

Ghostty is now indisputably the fastest terminal emulator at IO throughput, by a very large margin. On ASCII, Unicode, and CSI tests, Ghostty is more than 2x (double!) faster than any other leading "fast" terminal. These changes are directly in libghostty, too, so everyone wins. `time cat 150MB_ascii.txt`: - Ghostty nightly: 575ms - Ghostty 1.3.2: 1.5sec - Alacritty: 1.2sec - Kitty: 1.7sec - Warp: 3.8sec - iTerm2, Terminal: stopped after 60s `time cat 150MB_unicode.txt` (mixed languages): - Ghostty nightly: 536ms - Ghostty 1.3.2: 1.22sec - Alacritty: 1.05s - Kitty: 1.35s - Warp: 3.4s - iTerm2, Terminal: stopped after 60s `DOOM-Fire-Zig` (an IO test): - Ghostty nightly: 842fps - Ghostty 1.3.2: 532fps - Kitty: 485fps - Alacritty: 593fps - Warp: 577fps - iTerm2, Terminal: 60fps (yes, 60) To quickly address the "cat speed doesn't matter" naysayers: this is a direct test of how many bytes/second you can push through a terminal. It doesn't cover just "read big file" but also "how much can a TUI do". The tests above test various shapes of inputs (plain ascii, unicode/wide chars, csi-heavy loads, etc.). IO throughput is incredibly important. Most of these improvements apply to libghostty-vt consumers too, so any libghostty-based terminals will instantly see huge throughput improvements by simply upgrading (ABI compatible). I'll cover the exact improvements in a blog post in the future. These results are the result of 6 separate optimizations.

@mitchellh

🍌 Got so lazy to order stuff on UberEats that I asked Claude Code to do it Very easy, it just installs Playwright and then you login once to UberEats on web (the iOS app is also just a web wrapper, nice) Then you can just say "order bananas" and it does it!

@levelsio

I went to Miami to chat with @thdxr, co-founder of OpenCode. We talked about the future of software engineering, coding agents, and why open source matters more now than ever. Timestamps: 0:00 Intro 5:30 Miami vs San Francisco tech scene 15:05 OpenCode origin story, scaling while open-source 25:03 OpenCode vs. Anthropic: owning models, open-source AI 33:36 AI hardware shortages, predicting the future 42:15 The bet of open-weight models, China vs. US 48:34 Why inference is hard, economics of intelligence 55:36 Will developers be automated? Software engineering as a craft 1:11:02 Advice to founders, building in public, marketing I had so much fun making this with @ad0rnai. Enjoy!

@Madisonkanna

This is our first time telling the story of how we first built and launched Claude Code, starting with its origins in Anthropic safety research. So much more to do. We are 1% done.

@bcherny

Mind boggling to me that I can make a thing faster and there's always people that ask "but why?" What kind of mentality is that? The pursuit of excellence does not need justification. Also, I find in so many cases, we can't know the impact of an improvement until we do it. For example, one I've talked about before: Ghostty's high IO throughput has enabled terminal program (emulator and TUI) fuzzing at a speed thats incomparably fast to prior solutions. This has resulted in upstream patches to resolve issues in popular projects like btop, tmux, and more. Speed enabled that anecdotally example that lifted the tides of adjacent communities that don't rely on Ghostty technology at all. I didn't predict this. Make things better because they can be better and let the results naturally play out.

@mitchellh

Headroom -- a lightweight native Mac OS menu bar app for tracking your usage. Shipping tonight/tomorrow so that you can keep eyes on your Fable-filled week ahead. Works for both your subscriptions and API spends. Codex and Claude for now. Free dollars. Fully signed install package will be downloadable from my website. Stay tuned

@kylezantos

on this note, i built a PersonalOS by exporting all data from every app i've ever used main purpose was building a 300k tok context pack about my life. embedded all iMessage/Apple Notes/Docs/etc, summarized, retrieved across. having models read every text you've ever sent is a very effective way to teach them about who you are also cool to see every Uber, flight, or photo i've ever taken

@willdepue