Oskari Alaranta

Butterscotch. 🥧 An open source re-implementation of GameMaker: Studio's runner (YoYo Runner), targeting Undertale v1.08 (WAD Version 16)

Astral. x86-64 Operating System

FlameGraph. Stack trace visualizer

TacOS. Mirror of my from-scratch x86_64 UNIX-like OS.

Ethereal. A from-scratch operating system attempting to make a full user experience.

stanix. A 64 bits open source OS made from scratch

BadLands. Experimental operating system, built from scratch with custom interfaces

PatchworkOS. A modular, non-POSIX operating system for x86_64, built from scratch in C and assembly. Intended to be educational and experimental while rigorously following a Plan9-style "everything is a file" philosophy, featuring a from-scratch ACPI AML parser, EEVDF scheduler and a pseudo-capability namespace based security model.

libc-test. libc-test by the musl libc team (modified)

goldspace. Decent kernel I'm making

multitwitch. Multiple twitch streams on one page

Typeinfer-C. This is a small demo program to experiment with type inferring and showcase a recursive algorithm for complex type inference

dim. Simple and portable vim like editor written in C

advent-of-code-rust. Blazing fast Rust solutions for every Advent of Code puzzle from 2015 to 2025, solving 524 stars in less than 1 second.

uACPI. A portable and easy-to-integrate implementation of the Advanced Configuration and Power Interface (ACPI)

Dancy. Dancy Operating System

eza. A modern alternative to ls

MinOS. Minos is a mini operating system written in C

ladybird. Truly independent web browser

kernel. Portable asynchronous microkernel with multiprocessor priority scheduling and Unix-like abstractions

PotatOS. My hobby OS kernel

browserjam. Let's build browsers this weekend!

Cocos. C++

SpecOS. An x86_64 OS kernel from scratch.

v86. x86 PC emulator and x86-to-wasm JIT, running in the browser

doomgeneric. Easily portable doom

css-only-chat. A truly monstrous async web chat using no JS whatsoever on the frontend

dayz-scripts. Custom scripts for DayZ server. Init script contains: builtin server commands, vehicle spawning, weapon/ammo/gear/item spawning, kill and suicide, teleporting, chat announcements, etc.

AsusRouterMonitor. Python

seL4. The seL4 microkernel

serenity. The Serenity Operating System 🐞

linux. Linux kernel source tree

polybar. A fast and easy-to-use status bar

openssl. General purpose TLS and crypto library

porth. It's like Forth but in Python

imgui. Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

Hazel. Hazel Engine