vkost — writinghttps://vk0st.com/thoughts & internet debrissame weights, less waiting.https://vk0st.com/writing/sansa-less-waiting/https://vk0st.com/writing/sansa-less-waiting/Making SANSA fit about 2× faster, with 17–18% less peak RAM and bitwise-matching weights on two datasets.Fri, 02 Oct 2026 00:00:00 GMTfirst place, wrong objective.https://vk0st.com/writing/sailing-another-objective/https://vk0st.com/writing/sailing-another-objective/Returning to sailing after about ten years, and finding a race where leading can mean losing.Wed, 26 Aug 2026 00:00:00 GMTkeep the evidence.https://vk0st.com/writing/keeping-the-evidence/https://vk0st.com/writing/keeping-the-evidence/A music dialogue recommender where the difficult part was keeping the right track through two candidate-compression stages.Fri, 10 Jul 2026 00:00:00 GMTsame agents, different scores.https://vk0st.com/writing/same-agents-different-scores/https://vk0st.com/writing/same-agents-different-scores/A question from my Data Fest 2026 announcement: what still separates competition solutions when everyone has an agent?Thu, 28 May 2026 00:00:00 GMTone matrix, many questions.https://vk0st.com/writing/one-matrix-many-questions/https://vk0st.com/writing/one-matrix-many-questions/One linear recommender, a short formula, and the modeling choices hiding inside it.Sat, 16 May 2026 00:00:00 GMTtwo bars, one tiny screen.https://vk0st.com/writing/flipper-codex-monitor/https://vk0st.com/writing/flipper-codex-monitor/A small Flipper Zero side quest: putting Codex usage limits on a dedicated display.Wed, 13 May 2026 00:00:00 GMTa qwen on the home card.https://vk0st.com/writing/qwen-on-the-home-card/https://vk0st.com/writing/qwen-on-the-home-card/Qwen3.5-35B-A3B on an RTX 3090, running through llama.cpp on Windows and connected to Claude Code.Thu, 26 Feb 2026 00:00:00 GMTnew video, familiar author.https://vk0st.com/writing/competition-rabbit-holes/https://vk0st.com/writing/competition-rabbit-holes/Finding an audience for videos with no history: our VK LSVD solution, an author bridge, and a shared limit of 100.Tue, 13 Jan 2026 00:00:00 GMTforty nodes, quite a few features.https://vk0st.com/writing/avito-ml-cup/https://vk0st.com/writing/avito-ml-cup/From 22.6 million listings to 40 nodes: how AmazMe reused user histories in its winning Avito ML Cup 2025 solution.five models, one prediction loop.https://vk0st.com/writing/riiid-transformer/https://vk0st.com/writing/riiid-transformer/Inside our Riiid inference notebook: delayed answers, online statistics, three SAINT checkpoints, and the practical cost of keeping history.Thu, 07 Jan 2021 00:00:00 GMTa small conda trace.https://vk0st.com/writing/a-small-conda-trace/https://vk0st.com/writing/a-small-conda-trace/A missing library, a short GitHub comment, and a few people getting unstuck in 2020.Mon, 01 Jun 2020 00:00:00 GMT