Volodymyr Agafonkin 🇺🇦

@mourner

Engineer at @Mapbox, creator of @LeafletJS, open source enthusiast, algorithms geek, speaker, musician @obiymydoschu, baker, father of twin girls, Ukrainian

Kyiv, Ukraine

agafonkin.com

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Volodymyr Agafonkin 🇺🇦
@mourner
Jun 13, 2025
🎵 2 weeks ago, me and my band @obiymydoschu have released “Vidrada”, our new album, passionately crafted in Kyiv for 7 years. I've never been more invested in a project, and will be proud of it for the rest of my life. All my love, dreams, hopes and worries in one record. ⬇️
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Volodymyr Agafonkin 🇺🇦
@mourner
Sep 9
geojson-vt, which is responsible for GeoJSON processing in @Mapbox GL JS, just got a major overhaul — v5 now uses up to 4x less memory, so you can now visualize a lot more data without crashing the browser. Had a blast optimizing the hell out of it 🔥
GitHub - mapbox/geojson-vt: Slice GeoJSON into vector tiles on the fly in the browser
From github.com
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Volodymyr Agafonkin 🇺🇦
@mourner
Jul 12
What a time to be a software engineer if you know what you're doing. Prompt methodically, scope the context narrowly, match effort to task uncertainty, compact early, really think things through, and you can do amazing work full time non-stop with frontier models on a $20 plan
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Volodymyr Agafonkin 🇺🇦
@mourner
Jul 8
Initially a TypeScript skeptic, I’ve been increasingly impressed by the project’s progress and strong direction in the last few years, and this is one more big leap forward. Big props to the team, this is truly awesome
TypeScript
@typescript
Jul 8
📣 The moment is here. 📣 TypeScript 7 is officially released! 7️⃣ devblogs.microsoft.com/typescript/ann…
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Volodymyr Agafonkin 🇺🇦
@mourner
Jul 1
One of the best programmers in the history of computing and my role model for decades, retweeting my little open source project. Incredible. ❤️
John Carmack
@ID_AA_Carmack
Jul 1
It isn’t the point of this project, but looking at the triangulations made me think about some GPU optimization esoterica. Everyone knows “triangle count” has an impact on performance. Graphics programmers also know that the ordering of the triangles can also make a significant
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