#+TITLE: Operating Systems

Operating systems run your computer!

There are lots of innovative OS projects but only a few are really used.

* Projects
** Desktop
Aside from Linux, Windows, MacOS and derivatives...
https://www.ipredia.org/os/

- [[https://illuminos.org][IlluminOS]] :: An operating system that claims to provide advanced system debugging, a next-generation file system, networking and visualization.
- https://ameliorated.info/ :: Windows 10 with the crap removed
- [[http://gerigeri.uw.hu/DawnOS/][DawnOS]] :: An operating system built on the [[http://mazonka.com/subleq/][subleq]] higher level language architecture. See the [[https://www.youtube.com/watch?v=dlxMy_zrgAU][video]] for a detailed overview!
- [[https://github.com/tomaka/redshirt][Redshirt]]
- [[https://gitlab.redox-os.org/redox-os/redox][Redox]] :: is a Rust operating system with a microkernel-based design.
- [[https://github.com/urbit/urbit][Urbit]] :: A 'universal function'.
- [[https://github.com/toddsharpe/MetalOS][MetalOS]] :: A hobby project written by a single person.
- [[https://github.com/mntmn/interim][InterimOS]] :: Written to accompany mntmn's custom hardware.
- [[https://github.com/mchlmmc/CirnOS][CirnOS]] :: An operating system that transforms a Raspberry Pi into an Arduino. effectively.
- [[https://github.com/demikernel/demikernel][Demikernel]] ::  interesting approach to architecture
- [[https://github.com/cleverca22/not-os][NotOS]] :: An operating system generator based on NixOS.
- [[https://github.com/vygr/ChrysaLisp][CrysaLisp]] :: A next-generation Lisp machine.
- TempleOS (racist)
- [[https://collapseos.org/][CollapseOS]] :: An OS written entirely in the Forth programming language.
- Fuscia https://blog.quarkslab.com/playing-around-with-the-fuchsia-operating-system.html
- Gentoo :: An operating system that prides itself on building everything from source.
  [[https://ocharles.org.uk/posts/2012-07-09-leaving-gentoo.html][Leaving Gentoo]]
  https://www.paritybit.ca/blog/my-beginnings-with-gentoo
  https://timboudreau.com/blog/gentoo/read gentoo seems like a great learning exp
  https://wiki.gentoo.org/wiki/Raspberry_Pi#Hardware help loading gentoo onto a pi {might be more helpful to put on qemu}
- [[https://www.qubes-os.org/intro/][Qubes OS]] :: An operating system that isolates every application and device on the computer, granting permission to each only when necessary. Many journalists and security professionals rely on this.
- [[https://www.whonix.org/][WhoNix]] :: An operating system designed to completely sandbox your activity inside of a virtual machine.
- Plan9 :: Defer to [[https://wiki.xxiivv.com/site/plan9.html][Devine's notes on the subject]].
  - Plan9 resources: http://www.9gridchan.org/
  - [[http://aiju.de/plan_9/plan9-syscalls][Plan 9 System Calls]]
  - [[https://git.sr.ht/~ft/9pro][plan9 tools for unix operating systems]]
- [[https://en.m.wikipedia.org/wiki/Junos_OS][Junos OS]]
- [[https://spectrum-os.org/][Spectrum]] :: An OS modeled after Qubes, but making full use of the Nix reproducible build system, and dedicated to supporting mainstream x86-64 hardware.
- SmartOS :: combines opensolaris tech with linux kvm virtualization. has zfs. contributed to illumos project
** Mobile
https://news.ycombinator.com/item?id=23100713
- LineageOS ::
  The most popular alternative Android operating system, built off of CyanogenMod.
  https://wiki.lineageos.org/devices/starlte/install
  https://www.reddit.com/r/degoogle/comments/gu2kk9/lineageos_vs_e_vs_alternatives/
- /e/ :: An operating system designed to function efficiently on older, refurbished devices. Built on LineageOS.
- NixOS Mobile :: A full port of NixOS to a mobile platform. It's built on top of many previous efforts and relies on a tool to convert GTK applications to mobile equivalents.
** Other
- Wii-Linux ::
https://mirror.dernuntius.de/projects/wii-linux/
http://songseed.org/dinghy/concept.html reenvisioning the os

[[http://pages.cs.wisc.edu/~remzi/OSTEP/][Operating Systems: Three Easy Pieces ]] [[file:books.org][Books]]

[[https://github.com/nickbjohnson4224/rhombus][hobby operating system written in C]]

https://www.reddit.com/r/osdev/comments/husrzq/looking_for_a_specific_tutorial_from_10_years_ago/
[[https://github.com/darlinghq/darling][macos emulation layer for linux]]
[[https://github.com/akkartik/mu][toy os]]

https://blog.twitter.com/engineering/en_us/topics/open-source/2020/hunting-a-linux-kernel-bug.html
[[https://github.com/demikernel/demikernel][demikernel/demikernel: Demikernel OS]]

[[https://github.com/nickbjohnson4224/rhombus][nickbjohnson4224/rhombus: a hobby operating system written in C]]
[[https://github.com/jmgrosen/shorai][jmgrosen/shorai: A super-amazing OS that will bring world peace.]]
[[https://github.com/demikernel/demikernel][Demikernel]]

[[https://github.com/cleverca22/not-os][cleverca22/not-os]]

[[https://spreadprivacy.com/linux-privacy-tips/][How to Protect Your Privacy on Linux]]
[[http://people.cs.pitt.edu/~jacklange/teaching/cs2510-f17/][well known operating systems course at upitt]]
[[https://github.com/NatTuck/pancake][just in time specialization for opencl kernels]]
http://c9x.me/articles/gthreads/intro.html
[[https://people.kernel.org/metan/how-to-trigger-races-reliably][trigger kernel races reliably]]

[[https://github.com/kabbi/wonderland][kabbi/wonderland: Inferno clone to conquer the world]]

http://intermezzos.github.io/ a demo operatin system for learning
https://littleosbook.github.io/ the little book of of development

https://en.m.wikipedia.org/wiki/Genode

http://wintermute.org/brendan/ the screenless office and other artistic efforts

https://github.com/mkilgore/protura toy os kernel and utilities
https://makelinux.github.io/kernel/map/ map of the linux kernel


https://www.mercuryos.com/ reengineering of the operating system as a ux project, fluid experience driven by human intent

https://github.com/ssrg-vt/hermitux binary compatible unikernel

https://github.com/oasislinux/oasis statically linked linux system
https://github.com/dlannan/ljos luajit command line os
* etc
https://news.ycombinator.com/item?id=10957020: overview of real alternative operating systems for considering. lots of interesting innovations!