A C compiler in 512 bytes:
https://xorvoid.com/sectorc.html
"Hashes are perhaps the holy-grail of computer-science. With a good hash, we can just side-step all the hard problems by trading them for an even harder problem (hash collisions), and then we just ignore that harder problem. Brilliant. (sticks fingers in ears)"
@shelldozer oh lovely the parsable subset is called BCPL <3