CogNOS vs Hidamari

CogNOS

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

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Hidamari

Modern operating system aimed at running WebAssembly code. (by HidamariProject)

Kernel Zig operating-system WASM WebAssembly

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CogNOS		Hidamari
	Project
2	Mentions	1
32	Stars	62
-	Growth	-
0.0	Activity	1.8
over 5 years ago	Latest Commit	over 3 years ago
Smalltalk	Language	C
-	License	BSD 3-clause "New" or "Revised" 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

Hidamari

Posts with mentions or reviews of Hidamari. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-01-23.

SkiftOS: Simple, handmade operating system for the x86 platform
4 projects | news.ycombinator.com | 23 Jan 2021

UEFI sort of handles this, even if the spec is absurdly huge. It contains portions referring to standardized ways of interacting with Wi-Fi cards and other devices, even if not all firmware supports it. I started an OS project[1] a while ago based on it.
[1] https://github.com/HidamariProject/Hidamari

What are some alternatives?

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

skift - 🥑 The delightful operating system.

reactos - A free Windows-compatible Operating System

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

Dolphin - Dolphin Smalltalk Core Image

toaruos - A completely-from-scratch hobby operating system: bootloader, kernel, drivers, C library, and userspace including a composited graphical UI, dynamic linker, syntax-highlighting text editor, network stack, etc.

raspberry-pi-os - Learning operating system development using Linux kernel and Raspberry Pi

unikraft - A next-generation cloud native kernel designed to unlock best-in-class performance, security primitives and efficiency savings.