Hi, I’m John! I’m a L7 Senior Staff software engineer at Meta. My weird hobby is making AI Tech content on YouTube and Substack and I wanted to start sharing more here. In the past I’ve worked on Reels, Meta AI on Msgr and currently working on Threads. I also teach Agentic C…↗

Stop letting your agents ship ugly UIs. In this talk, I break down everything I know about how to make AI apps with great designs:↗

My life has become boring All I do is asking coding agents to write a PLAN.md, then /grill-me on it to improve the plan, then spin up an agent to implement it I'm just a markdown manager now😭😭↗

Introducing Warp Factories Warp Factories provide flexible, open infrastructure for companies building cloud software factories. For engineering leaders, this infrastructure helps measure and improve coding agent ROI over time. It provides agent governance and controls. It allo…↗

Signups are now open on Code[dot]Storage. Today, more new repos are created per second on Code Storage than any other platform. Lovable, Bolt, Amp, Poke, and many more of the largest agentic workloads store their code and agent memory at scale using Code.Storage.↗

sharing berd, a new open source desktop app to build with 🪿 we built this with a v small team, design + engineering working really close together, and designers building berd using berd! v proud of the fun and useful this is, and excited to keep building it out💫↗

Introducing fx, a tiny, open, native coding agent from Vercel Labs. Originally an internal tool, fx is a harness and CLI written in Zig, optimized for research and embedding in larger systems. Today, we're open sourcing it. fx is built on three principles: 1. Fast. A single na…↗

The craziest font website ever departuremono.com↗

💥 Announcing Lenny’s Jobs: The best place in the world to find, vet, and land your dream job I’ve spent thousands of hours on my newsletter and podcast sharing advice on how to get better at your work. But all that advice doesn’t mean much if you don’t actually have a job—or on…↗

Currently I’m really into markdown graphs with one vibrant accent color↗

Had to try it on an invoice↗

for weeks rauno sit and think really hard for good idea. sometimes walk for good idea. even run for good idea. play with son for good idea. no good idea… rauno speak to friend about trouble: want make good thing but no good idea. rauno say try everything. friend help remind raun…↗

My post about visualizing app architecture yesterday blew up, with many asking how it was done. I turned it into a skill so it can be applied to any repo. I've only tested it on a few (mostly small) repos so far, so let me know if you run into any issues. …↗

Turborepo is the build system for agentic coding. turborepo.dev↗

Your software factory should be a monorepo. All your company context (design, marketing, sales, engineering, support…) in one place for agents to build upon↗

Claude can now send emails in Gmail and manage files in Google Drive. Ask Claude to reply to a thread, and it drafts and sends the response. You control when it needs your approval. Connect Gmail or Google Drive from the connectors menu to try. Available on all paid plans.↗

As models become more capable, the risks associated with developing and testing them internally also grow. We temporarily paused reinforcement learning (RL) training on our latest models intended for deployment for two weeks while we hardened and red-teamed our research environm…↗

We've raised $700M at a $21B valuation from Jane Street, Kleiner Perkins, Sequoia, A16Z, Peter Thiel, BCV, and Blackstone. We're also excited to share that we've shipped our first rack to Jane Street.↗

“We believe in straight talk, so here it is: most email tools overcomplicate things. Ours doesn’t.” Stop that junk with one line in your CLAUDE/AGENT.md file: "No self-attestation. Do not praise your own credibility or narrate your own virtue."↗

Get started with Origin Origin is finally in early beta and is currently rolling out [Embedded Tweet: x.com/i/status/2089399057659596847] With Origin, you can create a repo, push and pull with git, or mirror one from GitHub. Browse and search the code, open and merge PRs, and…↗

the models have no moat (OpenAI, Anthropic, XAI) the IDEs have no moat (Cursor, Windsurf) the harnesses have no moat (Cognition, Factory, LangChain) the app builders have no moat (Replit, Lovable, Bolt) the wrappers have no moat (Harvey, Abridge, OpenEvidence) the inference…↗

Today we're publishing our first research blog, Understanding a Law Firm through Study. We're sharing a glimpse of a future where agents are trained with native memory:↗

Claude Code can design now. The new /design skill (research preview) brings Claude Design's artboard workflow into the CLI and Desktop, built on artifacts. Run /design to get editable artboards for your UI — pick one, tweak it, then have Claude implement it.↗

AI;DR (AI; didn’t read)↗

Own Your Intelligence: A How-To Guide By @sonyatweetybird, @gradypb, and @w1tness1ngh The race for the AI application layer is not only about UI, workflows, or GTM... it is a fight for the intelligence layer itself. The calls for owning your intelligence are escalating… Recen…↗

Bring your spreadsheet data to life Turn your spreadsheets into live, interactive mini-apps with Sheets canvas and Gemini 3.7 Flash — no coding required. How does it work? Let’s dive into it: Most AI UI tools produce prototypes that pull from static data files, but Sheets canv…↗

I think Grok @Bot is a glimpse into the future of personal AI agents. Here's my new tutorial where I show you how to set up 5 useful bots: 1. An advisor to create and manage your bots 2. A YouTube researcher to find outlier videos 3. An X scout to find viral and funny tweets 4.…↗

Introducing Bot Mode for Hermes Desktop. Your agent profiles become a series of named Bots. Each Bot has its own role, model, memory, skills and profile picture; Bots can use any model and even communicate with each other. Build a specialist Bot once to use it forever.↗

Introducing the ElevenLabs MCP, now available in Claude. Your team can manage your voice and chat agents where you already work - review recent performance, create new agents, update configurations, and even estimate LLM costs before changes go live.↗

New app in the works and we're looking for 50 beta testers! If you... - Have kids under the age of five - Love taking and looking at photos of them* - Use an iPhone 16 or higher - Are willing to give active feedback about the app then please reply here and I'll invite you to the…↗