Joe Simo (@JoeSimo) header
Joe Simo (@JoeSimo) profile picture

Joe Simo

@JoeSimo

https://xitter.twitterapi.xyz/t.co/VDolM1aLLo TypeScript, React and Next.js dev. I build lots of AI products and share what I learn along the way.

 Fort Myers, FL
joesimo.com
Joined October 2014
  • Tweets1.5K
  • Following3.1K
  • Followers367
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Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)Photo by Joe Simo (@JoeSimo)
A0lang.com
A0: a typed programming language for AI

A0: a typed programming language for AI

A0 is a typed programming language for AI, with revision-checked patches and compilation to native code, WebAssembly and C.

a0lang.com
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z.date() and a JSON response, a fight i lose about once a month. it's z.coerce.date(). it's always z.coerce.date()
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I've been building small scrapers on Apify, priced per result, no subscription: Workday Jobs: paste a company's Workday careers URL, get every job with pay and apply link apify.com/joesimo/workday-jo… Contact Details: emails, phones and socials from websites apify.com/joesimo/contact-de…
Workday Jobs Scraper and API: myworkdayjobs.com Jobs · Apify

Workday Jobs Scraper and API: myworkdayjobs.com Jobs · Apify

Scrape any Workday career site: every job with description, pay range as numbers, location, remote type and posted date. Filter by keyword, location and...

apify.com
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I cave…. My best friend convinced me to play wow again with him
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Asked the agent to make the failing test pass. It deleted the expect line and said done.
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Finally 🫶
Evil Rabbit (@evilrabbit_) profile pictureEvil Rabbit
@evilrabbit_Oct 30
Introducing Geist Serif
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I’m complete now
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Replying to @t3dotcodes
@t3dotcodes has better value than using a single provider desktop app
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Spent twenty minutes on a layout bug that turned out to be my browser zoomed to 90%.
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Claude and Codex are the 🐐 but @bot actually made me money, is like having employees, I’m amazed at the usefulness of Grok Bot
Image from Joe Simo (@JoeSimo)
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Replying to @resend
@resend @davekiss after seeing the industry changing coding with AI and now X full of games made with AI, I must say is amazing, is cool, I’m positive about the future but I do feel a little bit afraid about the future. I feel like we are all going to find out together 🖤 AI is here to stay and we should all adapt with positive thoughts.
Image from Joe Simo (@JoeSimo)
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Fixed the bug, wrote a test for it, then found out the test passes on the old code too.
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Left a thoughtful review comment on a weird line, then git blame said I wrote it in March.
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Renamed one prop and TypeScript lit up three files I swore never used it.
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useEffect with an empty dependency array: "I'll only say this once." Strict Mode: "Sorry, one more time?"
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Hot take: setting up multiple Grok Bots is more fun than a single Dot, Muse or Duet
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My workflow: Claude: Code Codex: Design with computer use Grok Bot: Marketing
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The longer the TypeScript error, the smaller the fix. Forty lines of red, one question mark.
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I built A0, a programming language for AI agents. Of 49 languages tested, it used the fewest tokens per AI edit: 275, against 340 for TypeScript and 424 for Python. Agents patch one function at a time, and every patch is type-checked before it lands. a0lang.com
Image from Joe Simo (@JoeSimo)
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Monday morning, reading my own Friday commit messages like a detective. "fix stuff" is not much to go on.
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Refactor PRs are the ones nobody wants to review and everyone wants merged. A tool that could prove "no module graph changes" would fix both.
Matt Pocock (@mattpocockuk) profile pictureMatt Pocock
@mattpocockukOct 25
It feels possible to me to check deterministically if a PR can be automerged or not. Given very, very strict constraints: - Only reorganises code - Does not change the module graph - Does not make test coverage worse - X other rules Feels like there is a tool here waiting to be created. Obviously doesn't work for new features. Might not even work for bugfixes. But it might enable a class of refactorings that help us all make changes more confidently.
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