I am working on a very modular typesetting engine called TeLoX, intended as a superset of the capabilities (of at least) XeTeX and pdfLaTeX, written in Rust. The main goals are modularity and speed (which we know sometimes fight each other unless we try to be principled about it).
My buddy Danny and I (and our good friend Claude) have been making this fun app to make and share vibe games. You just describe whatever game pops into your deranged little mind, and BLAMO!