Some _fun_ stuff i "coded" in a day each just in last couple weeks:

https://hippich.github.io/minesweeper/ - no idea why but i had a couple weeks desire to play minesweeper. at some point i wanted to get a way to quickly estimate probability of the mine presence in each cell.. No problem - copilot coded both minesweeper and then added probabilities (hidden behind "Learn" checkbox) - Bonus, my wife now plays game "made" by me and not some random version from Play store.

another one made in a day - https://hippich.github.io/OpenCamber - I am putting together old car, so will need to align wheels on it at some point. There is Gyraline, but it is iOS only (I think because precision is not good enough on Android?). And it is not free. I have no idea how well it will work in practice, but I can try it, because the cost of trying it is so low now!

yes, both of these are not serious and fun projects. unlikely to have any impact. but it is _fun_! =)