Show HN: Solsticio – daily sun/moon logic puzzle with a deterministic generator

I built a small daily logic puzzle: fill a grid with suns and moons so that no three repeat in a line and every row/column is balanced. Binairo/Takuzu family.

The part I had fun with: the level generator is fully deterministic and runs offline. A seed derived from the date produces the same board for everyone, with no server — the app, the website and the social videos all share one generator that's byte-identical between the JS and Dart ports (verified against reference vectors). Every puzzle is checked to have exactly one solution reachable by pure deduction, so you never have to guess.

Play today's in the browser (no signup): https://solsticio.app/ It's also a free Android app: https://play.google.com/store/apps/details?id=es.cs.solstici...

Happy to answer questions about the generator/solver.