Open-source enthusiast; maker. Co-host of @DevtoolsFM. @recursecenter Alum. Prev at @ValDotTown, @oxidecomputer, @ArtsyOpenSource.

Brooklyn, NY
Joined June 2010
Alrighty folks, I've renamed my twitter account from @zephraph to @just_be_dev. Got a placeholder for the old one.
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Justin Bennett retweeted
Day 3 of open sourcing our harness as pi-extensions: pi-durable-disk and pi-transport. We use both to run agents from anywhere. For us, the agent is the workspace. And the workspace lives in @archildata. With @pidotdev durable, the session DB also lives in the disk. We can mount and unmount it from its sandbox, and run the pi loop from a web browser (w WASM) or a @modal VM with GPUs - sometimes in the same session. Even easier, with Archil's serverless execution, we can run simpler agents. For example, we have an agent in-process go through 100s of GBs in Claude Code sessions and recall the entire history of a project in seconds.
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Justin Bennett retweeted
So basically, today PHP got two critical bugs that let anyone run code on your server without even logging in, which is bad, and then the details leaked before the patch was even out, which is worse, and it works on WordPress and MediaWiki and Magento and Joomla and Laravel, and Censys says like 1.5 million servers are running a version with no fix, so the NSA was like "take your system offline," and the FBI was like "take your system offline," and CISA and the UK and CERT-EU were all like "take your system offline," and then the Prime Minister of Japan, the actual Prime Minister, posted at 5:55 in the morning telling 48.8 million people to take their system offline, so everyone took their system offline, like the Dutch cybersecurity agency took its own website offline, and the Dutch parliament went offline, and the Port of Rotterdam went offline, and Finland and France and Denmark started pulling government sites, and Wikipedia went down, and Archive.org went down, and Asana and GOG and Something Awful went down, and the University of Vienna's webmail went down for some reason, and that's just PHP. Because GitLab also dropped a CVSS 10.0, which is the highest score they give out, for a bug that's been there since 2014, so that's every self-hosted GitLab for twelve years, and then LiteLLM 1.107.0 got hijacked and shipped a credential stealer and a remote access trojan in every single wheel and the Docker images, including latest, and you didn't even have to import it, just installing it was enough, and it's the second time this year, and then Railway paused every deployment on the entire platform because someone got into the environment variables, so now everyone has to rotate every secret they've ever stored there, and TiDB Cloud said someone was walking around inside with stolen credentials for basically a month and an extortion group says they took 10.6 terabytes, and Zeabur got breached for the second time in two months and is just shutting down, like the whole company, and Node.js patched remote code execution and a TLS bypass, and CISA says Plex is being actively exploited, and someone took over 300 Tor exit relays to steal SSH passwords, and SafePay ransomware has hit over 600 critical infrastructure orgs, and India's biggest bank filed a data loss incident, and Japan has been in an official state of emergency in cyberspace since October 9, which honestly explains the 5:55 AM post. Oh, and eMudhra, a certificate authority that's issued over 60 million certificates, whose entire job is proving websites are who they say they are, was supposed to be using private keys that are random numbers over a hundred digits long, and one of them was 4. Just 4. And the others were like 66 and 237. Anyway, it's Wednesday.
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Justin Bennett retweeted
The Computer for the 21st Century collage inspired by an @andy_matuschak reference. (putting my digital collage setup through its paces)
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so fast
Introducing Motherload — import data files from TypeScript with full type information 🪎 Powered by TypeScript 7.1's content mappers (now in beta) 🪎 .md 🪎 .toml 🪎 .yaml 🪎 .csv / .tsv 🪎 .jsonc / .json5 🪎 .txt 🪎 .env
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Justin Bennett retweeted
Content mappers in TS 7.1 are an absolute game changer It’s plugins for TypeScript: a way to dynamically compute a static type signature for external file types (.vue, .md, etc) and integrate them directly into tsc compilation
TypeScript 7.1 Beta is now available! Now with a preview API, content mapper support, new features, and some great optimizations. Give it a try and give us some feedback! devblogs.microsoft.com/types…
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Just adding Clairic to my side project as a little treat.
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I got to deprecate one of my OSS effect libraries because support got upstreamed. Feels good man.
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Justin Bennett retweeted
Introducing Pixel - a library for building GUIs in the terminal - 120 FPS pixel-perfect graphics - Embeddable inside existing TUIs - Built in chromium webview component pixelgui.com
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Justin Bennett retweeted
Platform tracking on the tabletop:
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Justin Bennett retweeted
a brand new model paradigm! introducing 𝚌𝚕𝚊𝚒𝚛𝚒𝚌: a system one model for extracting, computing, estimating, and predicting values from unstructured inputs. blog.cloudflare.com/clairic-…
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Yo @RhysSullivan, @kitlangton y'all in SF? Wanna hang?
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You shouldn’t worry about defensibility if you haven’t even built anything.
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Justin Bennett retweeted
Semantic Diffs are coming to @rescriptlang 🧵 Review a compiler change as the change it makes to the compiler's own objects: here, the parse tree of `%raw`, Before and After.
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Justin Bennett retweeted
I've been thinking a lot lately about how to optimize the feedback loop between me + the robots. Both how to best steer and view their outputs as well as how to most effectively critique them. Scrawl is my best effort at addressing the 2nd case. I'm extremely happy with it.
hey. here's a little demo of the most meaningful improvement to my productivity since speech-to-text.
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Justin Bennett retweeted
hey. here's a little demo of the most meaningful improvement to my productivity since speech-to-text.
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Tracking how many tokens I'm burning on side projects: traces.just-be.dev/
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Yo SF! Wanna hang?
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Yes GitHub, I have a problem, thank you.
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Justin Bennett retweeted
Working on a custom skill to generate generative artifacts. Not quite there yet. Lots to fix, but sharing the work in progress PS: Inspired by @pitus_’s posts xitter.cf/pitus_/status/21115193…
Generative UI #2 - Merge conflicts 🚫 ✨
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