CogNOS vs skift

CogNOS

A Cog VM in the bare metal using the Nopsys library (by nopsys)

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skift

🥑 The delightful operating system. (by skift-org)

Osdev Kernel Userspace operating-system Skift C++ hobby-os CPP

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skiftos.org

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CogNOS		skift
	Project
2	Mentions	9
32	Stars	2,185
-	Growth	2.0%
0.0	Activity	9.7
over 5 years ago	Latest Commit	4 days ago
Smalltalk	Language	C++
-	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

CogNOS

Posts with mentions or reviews of CogNOS. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-12-16.

SqueakNOS: Smalltalk as a Standalone OS
2 projects | news.ycombinator.com | 16 Dec 2022

A slightly more updated (2018) revival of the same project is available here: https://github.com/nopsys/CogNOS
SkiftOS: Simple, handmade operating system for the x86 platform
4 projects | news.ycombinator.com | 23 Jan 2021

OS on top of that. CogNOS is a Smalltalk system written on top of NopSys.
https://github.com/nopsys/CogNOS
https://charig.github.io/assets/papers/SCDE-DLS.pdf

skift

Posts with mentions or reviews of skift. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-05-30.

Why is C often used over C++ in osdev
1 project | /r/osdev | 2 Aug 2022

Because it's traditional to use C for freestanding stuff but C++ is as capable as C to be use for freestanding code. For example here is a bootloader written in hight level C++ https://github.com/skiftOS/skift/blob/main/src/loader/loader.cpp
OpuntiaOS – an operating system targeting x86, ARMv7, Aarch64
3 projects | news.ycombinator.com | 30 May 2022

> I'm not sure why one would write a new OS in C++ in 2021/2022
numbers of hobby C++ OS started from scratch which went from zero to GUI in a couple years: at least 4 - SerenityOS, this, https://github.com/skiftOS/skift, https://github.com/Supercip971/WingOS
how many in other languages ?
looking for a minimal os that has a minimal gui system just for learning purpose.
3 projects | /r/osdev | 29 Apr 2022

https://skiftos.org https://brutal.smnx.sh https://serenityos.org
How to build my OS in github actions
3 projects | /r/osdev | 16 Mar 2021

Here is the CI workflow I used https://github.com/skiftOS/skift/tree/main/.github/workflows
Skiftos Playing With Neko
1 project | /r/osdev | 20 Feb 2021
SkiftOS: Simple, handmade operating system for the x86 platform
1 project | /r/patient_hackernews | 24 Jan 2021

1 project | /r/hackernews | 24 Jan 2021

4 projects | news.ycombinator.com | 23 Jan 2021

What touches me the most is how much I like the GUI applications look like [0][1]. As a person, who use GNOME Shell DE I really miss to see the titlebars condensed with the menu just like VSCode does. It was what I liked in the very last Unity DE and I happy to see this once again. I am also amazed how simple the TextEditor is [2][3] and how handy looks your libwidget components. Congratulations!
[0]: https://www.reddit.com/r/osdev/comments/ky7igd/my_handmade_w...
[1]: https://www.youtube.com/watch?v=Za0oHBFr9zo
[2]: https://github.com/skiftOS/skift/blob/main/libraries/libwidg...
[3]: https://github.com/skiftOS/skift/blob/main/libraries/libwidg...
[4]: https://github.com/skiftOS/skift/tree/main/libraries/libwidg...

What are some alternatives?

When comparing CogNOS and skift you can also consider the following projects:

hidamari - Video wallpaper for Linux. Written in Python. 🐍

serenity - The Serenity Operating System 🐞

Hidamari - Modern operating system aimed at running WebAssembly code.

WingOS - a little 64bit operating system written in c++ with smp support

Dolphin - Dolphin Smalltalk Core Image

haiku - The Haiku operating system. (Pull requests will be ignored; patches may be sent to https://review.haiku-os.org).

brutal - 🏢 An operating system inspired by brutalist design that combines the ideals of UNIX from the 1970s with modern technology and engineering

LensorOS - An OS based on UEFI

AhnTri - Super-simple OS

morphiOS - A lightweight 32-bit operating system written in C++ for the i386 (x86) architecture.