apple2 话题在 GitHub 上没有填写简介，这里按 Star 数汇总最相关的热门仓库。
A latency-hating emulator of: the Acorn Electron, BBC Micro and Archimedes, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, early PC compatibles, Sega Master System, Sinclair ZX80/81 and ZX Spectrum, Tandy CoCo and Thomson MO5/6.
Ted Fried 的 MicroCore Labs 项目——针对 8088、8086、8051、6502、68000、Z80、Risc-V，以及打字机和 EPROM 模拟器项目的 FPGA CPU 核心和仿真器。 MCL51、MCL64、MCL65、MCL65+、MCL68、MCL86、MCL86+、MCL86jr、MCLR5、MCLZ8、MCL6809、XTMax、MCL8080+
Free and Open Source AFP fileserver for Macs and cross-platform AFP clients
Disassembly of the Apple II Desktop - ProDOS GUI
Apple ][ MS-DOS 模拟器，使用 8088 汇编编写
Proto Language AsSeMbler for All (formerly Apple)
Multi Tasking OS for Apple IIe //c IIgs link to previous version : https://github.com/A2osX/A2osX/tree/0.95/.Floppies
CiderPress Apple II archive utility for Windows
AppleCommander is a tool that manipulates Apple ][ disk images. Files may be imported, exported, viewed, or printed with various file filters.
A software tool for working with Apple II and vintage Mac disk images and file archives.
Improved Apple //c (ROM 4X) and Apple IIc Plus (ROM 5X) firmware.
Apple II emulator for Linux
PyTorch implementation of CycleGAN
Awesome Lists of retrocomputing resources (6502, Apple 2, Atari, ...)
A curated list of original and reverse-engineered vintage 6502 game sourcecode.
Apple II FPGA Co-Processor
Apple ][ Emulator for Mac
Portable emulator of an Apple ][+ or //e. Written in Go with multiple frontends.
An Apple IIgs Emulator and Debugger written in C/C++ for Windows, Linux and macOS
Port of AppleWin Emulator with Native macOS UI