Alternatives and similar repositories for PiOS

Users that are interested in PiOS are comparing it to the libraries listed below

• madd-games / glidix
  A POSIX-compliant but modernized, graphical operating system for x86_64.
  ☆76Updated last year
• AndrewAPrice / Perception
  A hobby operating system
  ☆105Updated 3 weeks ago
• miselin / pedigree
  The Pedigree Operating System
  ☆53Updated 2 years ago
• thepowersgang / acess2
  Acess2 Hobby Operating System
  ☆91Updated 2 years ago
• doug65536 / dgos
  Operating System
  ☆135Updated 3 years ago
• mrvn / raspbootin
  Simple boot-over-serial bootloader for the Raspberry Pi
  ☆146Updated 5 years ago
• Chadderz121 / csud
  Chadderz's Simple USB Driver for Raspberry Pi
  ☆211Updated 5 years ago
• Nils-TUD / Escape
  Escape is a UNIX-like microkernel operating system that runs on x86, x86_64, ECO32 and MMIX.
  ☆200Updated 5 months ago
• jmolloy / pedigree
  Pedigree operating system
  ☆93Updated 9 years ago
• grahamedgecombe / arc
  A toy x86-64 kernel.
  ☆52Updated 10 years ago
• deater / vmwos
  a simple homebrew operating system for the Raspberry Pi
  ☆42Updated 3 weeks ago
• tatimmer / tatOS
  tatOS operating system, x86 Assembly, usb UHCI & EHCI, flash drive, keyboard, mouse
  ☆32Updated 9 years ago
• mallardtheduck / osdev
  OS development...
  ☆46Updated 2 years ago
• shawnanastasio / ShawnOS
  A Basic x86 Operating System/Kernel
  ☆53Updated 6 years ago
• brianwiddas / pi-baremetal
  Experimenting with bare metal coding on a Raspberry Pi
  ☆167Updated 13 years ago
• pdoane / osdev
  Hobby OS project for learning more about low-level hardware (GPUs, networking, USB)
  ☆223Updated 6 years ago
• davxy / beeos
  A simple Unix-like kernel trying to be POSIX compliant
  ☆138Updated last year
• missimer / x86-64-kernel-boot
  ☆59Updated 3 years ago
• mkilgore / protura
  ☆91Updated 3 years ago
• primis / Apollo
  x86 Kernel Project
  ☆36Updated last year
• JMarlin / wsbe
  The example code for the Windowing Systems by Example blog series
  ☆94Updated 4 years ago
• jtsiomb / kernel
  A minimal UNIX kernel project for x86 PCs
  ☆39Updated 6 years ago
• xenos1984 / NOS
  Operating system project
  ☆33Updated 8 months ago
• berkus / jamesm-tutorials
  James Molloy's Kernel Development Tutorials - backup copy from googlecode
  ☆33Updated 10 years ago
• beevik / MonkOS
  an experimental 64-bit operating system
  ☆137Updated last year
• a-darwish / cuteOS
  A 64-bit SMP-safe kernel for the PC architecture.
  ☆89Updated 7 years ago
• lkundrak / dev86
  C compiler, assembler and linker environment for the production of 8086 executables
  ☆168Updated 2 years ago
• SharpCoder / rpi-kernel
  A Basic (non Linux) C++ Kernel for Raspberry Pi.
  ☆94Updated 10 years ago
• littleosbook / aenix
  adams and eriks nix
  ☆121Updated 8 years ago
• blanham / liballoc
  liballoc - a memory allocator for hobbyist operating systems
  ☆205Updated 5 years ago