DTF:HN for April 5, 2026

Your Daily Tech Feed covering the top 10 stories on Hacker News for April 5, 2026. Featuring: Talk like caveman, Lisette a little language inspired by Rust that compiles to Go, Show HN: A game where you build a GPU, German implementation of eIDAS will require an Apple/Google account to function, OpenScreen is an open-source alternative to Screen Studio, and more. Stories covered: 1. Talk like caveman https://github.com/JuliusBrussee/caveman HN discussion: https://news.ycombinator.com/item?id=47647455 2. Lisette a little language inspired by Rust that compiles to Go https://lisette.run/ HN discussion: https://news.ycombinator.com/item?id=47646843 3. Show HN: A game where you build a GPU https://jaso1024.com/mvidia/ HN discussion: https://news.ycombinator.com/item?id=47640728 4. German implementation of eIDAS will require an Apple/Google account to function https://bmi.usercontent.opencode.de/eudi-wallet/wallet-development-documentation-public/latest/architecture-concept/06-mobile-devices/02-mdvm/ HN discussion: https://news.ycombinator.com/item?id=47644406 5. OpenScreen is an open-source alternative to Screen Studio https://github.com/siddharthvaddem/openscreen HN discussion: https://news.ycombinator.com/item?id=47595695 6. Introduction to Computer Music (2009) [pdf] https://composerprogrammer.com/introductiontocomputermusic.pdf HN discussion: https://news.ycombinator.com/item?id=47645432 7. Scientists Figured Out How Eels Reproduce (2022) https://www.intelligentliving.co/scientists-finally-figured-out-how-eels-reproduce/ HN discussion: https://news.ycombinator.com/item?id=47607408 8. LLM Wiki – example of an "idea file" https://gist.github.com/karpathy/442a6bf555914893e9891c11519de94f HN discussion: https://news.ycombinator.com/item?id=47640875 9. Aegis – open-source FPGA silicon https://github.com/MidstallSoftware/aegis HN discussion: https://news.ycombinator.com/item?id=47646472 10. Rubysyn: Clarifying Ruby's Syntax and Semantics https://github.com/squadette/rubysyn/blob/master/README.md HN discussion: https://news.ycombinator.com/item?id=47598835