Project URL: http://hyperweb.space/#!/project/shag-legs
This is a compiler, using a hand-rolled lexer, recursive-descent parser, and x86 assembly generator. It compiles a very small subset of Lua to very basic x86 assembly.
I wrote this compiler for a Tech Talk called "Writing a Compiler in HyperWeb in 30 Minutes". It took almost 90 minutes. Estimates are hard.
(If you want to start from the beginning of the Tech Talk, use the blank compiler project)