Reposted by Jon KupermanRob Palmer @robpalmer.bsky.social · 15hECMAScript excitement 😉 Congrats to @nicr.dev on advancing `export defer` to Stage 2.7 at @tc39.es today 🎉 It is a performance feature that permits lazy evaluation of re-exported bindings. It is useful for reducing the cost of partially-used barrel files 👍 2377
Reposted by Jon KupermanRob Palmer @robpalmer.bsky.social · 15hECMAScript excitement 😉 Congrats to @ashley-c.bsky.social from TechAtBloomberg on advancing the Composites proposal to Stage 2 at @tc39.es today 🎉 Composites are objects that are compared by value instead of identity. They are an evolution of Record & Tuple proposal. 59115
Reposted by Jon KupermanJonas Kruckenberg @jonaskruckenberg.de · 28/09/2026come work with me! work with dome of the biggest companies on some of the hardest problems! mainmatter.notion.site/Rust-Enginee...mainmatter.notion.siteRust Engineering Consultant 2026 | NotionPlease email jobs+rust@mainmatter.com with your résumé and availability. 2104
Jon Kuperman @jonkuperman.com · 27/09/2026Are civilized drinks when you drink Jäegermeister and discuss why civ 5 is better than civ 6? 110
Jon Kuperman @jonkuperman.com · 27/09/2026I just did my first non-ebike ride in one and a half years and it was AWFUL 4160
Jon Kuperman @jonkuperman.com · 12/09/2026lol why is spotify catching strays in this hn comment news.ycombinator.com/item?id=4964... 390
Reposted by Jon KupermanJustin Fagnani @justinfagnani.com · 09/09/2026I wrote about what I've been up to with my new programming language! Zena targets WebAssembly GC, with a TypeScript-like syntax, sound type system, and lots of cool features like pattern matching, async cancellation, borrow checking, WASI integration, and more! justinfagnani.com/2026/09/09/z...justinfagnani.comZena: A new Wasm-first programming language 410526
Jon Kuperman @jonkuperman.com · 09/09/2026You: I'd like to report a website! Police: Can I have your name and phone number? You: Oh no, they got to you too! 020
Jon Kuperman @jonkuperman.com · 09/09/2026It's hard for me to overstate how much I owe to that place and time. I don't remember why I joined but I'm so glad I did! 130
Jon Kuperman @jonkuperman.com · 09/09/2026Have any of you read A Short Stay in Hell? I want to chat about it! www.goodreads.com/en/book/show...goodreads.comA Short Stay in HellAs a faithful Mormon, Soren Johansson has always believ… 230
Jon Kuperman @jonkuperman.com · 08/09/2026If she hits bugs or feature requests send them my way! No ads. 010
Jon Kuperman @jonkuperman.com · 08/09/2026I made this silly sudoku app months ago. Yesterday I looked on Clerk and saw I have ten users who play almost daily. Such a nice feeling. infinitesudoku.cominfinitesudoku.comInfinite SudokuA beautiful, endlessly replayable Sudoku game with multiple difficulties, killer mode, and offline support. 2160
Jon Kuperman @jonkuperman.com · 05/09/2026My neighborhood is so trendy I just ordered a coffee in central London and thought “wow what a deal!” 1170
Jon Kuperman @jonkuperman.com · 04/09/2026I like to keep our AI team on their toes by asking about models that don’t exist 3990
Reposted by Jon KupermanJames Snell @jasnell.me · 03/09/2026Just merged the new experimental `node:bench` module into Node.js main... modeled closely after `node:test`, it adds a basic benchmark runner to core. node --bench benchmark.js 1333
Jon Kuperman @jonkuperman.com · 03/09/2026Is slack having a month long outage? slack-status.comslack-status.comSlack System StatusResources for real-time and historical information about the Slack service. 010
Jon Kuperman @jonkuperman.com · 02/09/2026Yes, AI wrote the code. But I have a good understanding of how it works! 1180
Jon Kuperman @jonkuperman.com · 02/09/2026whoiz - now on @npmx.dev npmx.dev/package/@jku...npmx.dev@jkup/whoiz - npmxWho is actually serving this site? Enumerate a domain's endpoints and fingerprint the CDN and hosting provider behind each one. 1204
Jon Kuperman @jonkuperman.com · 02/09/2026What if rust and elixir were *not* involved *and* you got to move to London! 210
Jon Kuperman @jonkuperman.com · 29/08/2026I see your "motorcycle on car" and I raise you "chair on bicycle" 020
Jon Kuperman @jonkuperman.com · 28/08/2026I consider anyone who shows up less than three minutes late a prompt engineer 4360
Jon Kuperman @jonkuperman.com · 28/08/2026More and more lately bluesky takes many seconds to load in content. Is this happening to anyone else? 7160
Jon Kuperman @jonkuperman.com · 27/08/2026Kind of want to sign up for this aichessathon.comaichessathon.comAI Chessathon: Build a chess agent. Put it on the board.Online qualification 7–11 September 2026. London final 12 September 2026. Sponsored by Optiver. 130
Reposted by Jon KupermanOliver Medhurst @honk.foo · 25/08/2026Porffor alpha is out! It represents a new phase of the project where real-world dependencies are beginning to work and Node compatibility is the main bottleneck. To be clear, it still likely won't work with your app yet, but it is much closer than before. Recap here: honk.foo/porffor-alpha/honk.fooPorffor goes alpha August 11thA self-hosting and rewritten Porffor launches in SF next month! 37320
Reposted by Jon KupermanJon Kuperman @jonkuperman.com · 25/08/2026This was fun github.com/jkup/whoiz 4374
Reposted by Jon KupermanRob Palmer @robpalmer.bsky.social · 19/08/2026ECMAScript excitement 😉 Congrats to @yusukesuzuki.bsky.social on shipping TC39 Stage 3 Import Defer in upstream WebKit, heading for Safari 🎉 Import Defer is a performance feature that lets you lazily execute a module on first access to the module namespace 🔥 github.com/WebKit/WebKi... 2589
Jon Kuperman @jonkuperman.com · 17/08/2026github and claude down at the same time i guess i'll look out my window for a while 081
