Montegrid
I've been putting my applied math degree to work! https://asunder.co/montegrid - Mainly working on a Monte Carlo Excel plugin that can run on Mac. Standard scientific computing shenanigans ... one benefit of everything being Javascript is that one can use Rust -> WASM everywhere :) Also maintaining weaving software (https://asunder.co/bower) which has so many fun puzzles in discrete math and combinatorial optimization to think about. Cool to see everyone else's projects!