rewrite of BoilerClasses with some improvements, like an actual backend with Apache Lucene, course reviews, professor pages, better scraping, & much more
half-functional playground for univariate polynomials/series/generating functions. mostly expands analytic expressions into their power series, with EGF support (just extracts factorials in denominator)
chess with weird variants & custom boards, written in C with webassembly. it has enough potential to be a security hazard that i'm not running the server...