Single place for examples I create: iOS, Mac OS, Cocoa, XCTest, MapKit, Make, Flex/Bison etc.

Wang Yi's GPT solution

Xv6 for RISC-V

SQL parser for mysql based on antlr。

The node framework you have been looking for!

This is a compiler for a high-level language that targets the PDP-7 Unix system,

Simple kernel for learning operating systems. 用于学习操作系统的简单内核

A Compiler Writing Journey

Writing a sqlite clone from scratch in C