Show HN: Capacitor Alarm Clock I made an alarm clock that blows up capacitors to wake you up. There are more details on the Github repo but it's made from an esp32-c3 as the microcontroller, with 3 capacitor slots. There are relays on each capac…

Show HN: High-Res Neural Cellular Automata Neural CAs model self-organizing pattern formation. Now they can generate patterns at HD resolution in real-time, enabled by turning each CA cell into a Neural Field. Try 3 demos: grow a pattern from a seed…

Show HN: Day-ahead river discharge forecasting using USGS and ERA5 data https://ift.tt/1bBf8Ml June 17, 2026 at 12:25AM

Show HN: AppointMe – open-source .NET SaaS template (modular monolith, DDD) https://ift.tt/pceNFTd June 16, 2026 at 05:15AM

Show HN: CoreMCP – MCP Server for On-Prem DBs https://ift.tt/QdPTbK3 June 16, 2026 at 03:04AM

Show HN: FlashQwen – A from-scratch CUDA inference engine for Qwen3 https://ift.tt/TQoiEn0 June 15, 2026 at 10:39PM

Show HN: X – A programming language with switchable memory modes https://ift.tt/P3lLrBj June 15, 2026 at 01:18AM

Show HN: Memorypad – A note editor for your daily notes, in Markdown https://memorypad.io/ June 15, 2026 at 03:42AM

Show HN: I wrote a C++ ray tracer from scratch without AI https://ift.tt/7eUP9zx June 15, 2026 at 02:34AM

Show HN: I used Claude Mythos to build my startup in 1 day This sounds clickbait, but it’s true: I used Claude Mythos to build the full site in 1 day. Then Anthropic removed the model, so I had to go back to Opus. https://www.brandlm.ai/ June 14, 20…