Show HN: Physical constants from 2 integers – MIT, 1225 tests, falsifiable https://ift.tt/ZnDVFiH April 7, 2026 at 12:52AM

Show HN: Anos – a hand-written ~100KiB microkernel for x86-64 and RISC-V I pretty much always have a kernel project going on, and have been ...

Show HN: Mdarena – Benchmark your Claude.md against your own PRs https://ift.tt/i7YFueO April 6, 2026 at 12:35AM

Show HN: Genetic algorithm engine that evolves trading strategies https://ift.tt/vYb7JV3 April 5, 2026 at 09:21PM

Show HN: Self-Host Excalidraw with Collaboration and Storage https://ift.tt/6OathG3 April 5, 2026 at 12:13AM

Show HN: Contrapunk – Real-time counterpoint harmony from guitar input, in Rust https://contrapunk.com/ April 5, 2026 at 01:40AM

Show HN: Tokencap – Token budget enforcement across your AI agents I built this after hitting the same wall repeatedly — no good way to enfo...