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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
Joined January 2007
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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
    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 1
    One of the best programmers in the history of computing and my role model for decades, retweeting my little open source project. Incredible. ❤️
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    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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    Volodymyr Agafonkin 🇺🇦
    @mourner
    Jun 30
    One of my proudest open source libraries, Earcut, just got a big refresh — now 55% faster on average (and up to 3x faster on complex polygons with many holes), and comes with a new refine function that updates any triangulation to Delaunay quality. Also got open issues to zero ✨
    Example of a polygon triangulation