- bootstrap-scheme: Bootstrap Scheme is a quick and very dirty Scheme interpreter.
- minilisp: A readable lisp in less than 1k lines of C
- 9cc: A Small C Compiler, and there is alos a 8cc.
- crafting interpreters: Contains everything you need to implement a full-featured, efficient scripting language.
- fleurix: An Unix-like toy OS Kernel
- toydb: Distributed SQL database in Rust, written as a learning project
- MariOCaml: HTML 5 canvas implementation of Mario written in Ocaml