Links

Links for September 22, 2026

1. "Migrating the GitHub Copilot runtime to Rust, using Copilot"

   Really good migration discussion, including key decisions like incremental vs big bang migration

2. "Brief Practical Advice for Short-Form Brainrot"
3. "AI coding has made CI a bottleneck, so we reworked ours to keep up"
4. "Can gzip be a language model?" "Can gzip be a language model? | Hacker News"
5. "MiMo-V2.6 | Xiaomi" "MiMo v2.6 | Hacker News"

   "Scaling RL, Fully Open-Sourced

   Along the way we worked through the research and engineering problems of RL training, and we streamed the production run live as it happened. In under six days, MiMo-V2.6-Flash and MiMo-V2.6-Pro each completed 30 RL steps over roughly 750k trajectories, at a cost of about $0.85M and $2.62M respectively.”