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qbe. A Quick Backend

fbui. Framebuffer UI (fbui) in-kernel Linux windowing system.

cc500. CC500: a tiny self-hosting C compiler

pijul. Pijul is a free and open source version control system, intended to be simple to use, yet based on a sound theory of collaborative work, and using fast algorithms. Pijul gathers most of the flame-war-features of version control systems: it has branches, first-class patches and snapshots, is distributed (yet can be used in a centralized way), and even has alternative implementations in different programming languages!

scc. scc - simple C Compiler

bcpl. BCPL is a simple typeless language that was designed in 1966 by Martin Richards

ff. A Simple Forth System for Linux on i386 and ARM CPUs

vlink. A portable linker for multiple file formats.

tccboot. TCCBOOT: TinyCC Boot Loader

asif. A Self-Interpreter for F-omega

otcc. Obfuscated Tiny C Compiler

pilos. PilOS - A Stand-Alone Operating System

miniPicoLisp. A kind of "pure" PicoLisp (not "pure Lisp"!).

ged. simple gtk text editor written in c

hsq. Higher Subleq is a simplified typeless C language.

linoleum. HTML

myrddin. C

AutoCorres. AutoCorres : Automatic Specification Abstraction

sam2. An updated version of the sam text editor.

Bcachefs. Bcache is a Linux kernel block layer cache. It allows one or more fast disk drives such as flash-based solid state drives (SSDs) to act as a cache for one or more slower hard disk drives.

HeavyThing. https://2ton.com.au/HeavyThing/

dcc. dcc decompiler by Cristina Cifuentes

codisasm. Assembly

qscm. A tiny bootstrapped Scheme

tinywm. tinywm 8l fork version

spin. Spin is a popular open-source software verification tool

qcc. A tiny C compiler

wind. Wind is a window manager for the X Window System

kalmar. Kalmar : An open source C++ compiler for heterogeneous devices

lfscript. Linux From Script (or 'LFScript') is an unofficial alternative for 'Automated Linux From Scratch

cucu. CUCU is a toy compiler for a toy language.

go. The Go programming language

nhc98. nhc98 is a small, easy to install, standards-compliant compiler for Haskell 98, the lazy functional programming language.

ted. Ted is a small and powerful text editor for X window

inferno. inferno on android/firefox-os

aoeui. Automatically exported from code.google.com/p/aoeui

openvmtil. https://code.google.com/p/openvmtil/

xedit. Simple text editor for X

b0. http://b0language.sourceforge.net/

agg. Anti-Grain Geometry Library

cmm. You would be much happier with one portable assembly language that could be generated by a front end and implemented by any of several code generators. C minus minus is that language.

sam. Sam is a powerful X-based text editor

KaarPux. Linux build from source

subc. SubC is a fast and simple public domain compiler for a clean subset of the C programming language. It can compile itself and passes gcc -Wall -pedantic. Current version: subc-20141207.tgz

ravm. RAVM: compile once and run anywhere https://zsmith.co/ravm.html

fasm. http://flatassembler.net/

gdsl. GDSL: A Generic Decoder Specification Language for Interpreting Machine Language

L3. L3: A Specification Language for Instruction Set Architectures

dmenu. suckless dmenu

os64. C

akaros. Akaros Operating System

HrwCC. hrwcc: a self-compiling C compiler

aports. Readonly mirror of aports (http://git.alpinelinux.org/cgit/aports)

b. Compiler for the B programming language

barrelfish. Barrelfish is a new research operating system being built from scratch and released by ETH Zurich in Switzerland

SPIRV-Tools. C++

ceed. A tiny x86 compiler with ELF and PE target

creduce. C-Reduce, a C program reducer

Lisp90. Lisp Interpreter in 90 lines of C++ (not counting lines after the first 90).

anydsl. Meta project to quickly build dependencies