Shipped this project!
Around October of last year, I built my own Minesweeper implementation for the TI84 Plus CE. The code showed clear signs of its vibe-coded origin, everything not written by AI was wildly inefficient, and only survived because of the small scope.
This year, I upgraded the project using much needed QoL features requested by my friends (like a visible timer), and ended up rewriting most of the game logic in C++. It is now REALLY efficient, as most game state is now stored in a class (therefore, no context switching etc. is needed), and the binary is still quite small (around 7KiB).
The game has a simple style that does not distract from the gameplay too much, and features easy-to-learn controls that feel native to the calculator. (No bullshit such as using the numbers to move or clear to exit)