I built a dual crossword puzzle where two crosswords share one grid

Forkle (forkle.co.uk) is a daily word game where two thematically linked crosswords occupy the same grid simultaneously. Every tile contains two letters - one belonging to each puzzle - displayed as a diagonal colour split. Where the two puzzles intersect, some tiles share the same letter, giving you a foothold into both crosswords at once. The mechanic has two layers: the shared grid, and the connected themes. Each day's two crosswords are thematically paired around a central idea. Today's puzzle is "Same House, Different Kingdoms" - same home, same humans, entirely different worlds. One crossword is the dog's world, the other is the cat's. The themes are chosen to be related but distinct, which creates an extra layer of satisfaction when the connection clicks. The constraint of forcing two crosswords into one physical space turns out to create genuinely interesting solving decisions - sometimes the two puzzles help each other, sometimes they fight. Built solo over a few months using React, Python, Supabase, Fly.io and Resend. Three months of daily puzzles pre-loaded. Launched two weeks ago. Would love feedback from anyone willing to try it.