The whole stack, written in the open.
Holograph builds operating systems, kernels, programming languages and small language models, and every project is open source. Join the list to follow what we ship next.
Prefer code first? Browse every project on GitHub
Our projects
Built in the open. Free to use.
UloOS
A hobby operating system with a Windows 95-inspired look and feel, with its interface built in HTML.
holo-kernel
An open source kernel written in C, the foundation layer for building an operating system from scratch.
WaterC#
A language with simple, mid-difficulty syntax, a standalone native compiler, an OS kernel emitter and a browser studio that needs no extensions.
Holo-Constrictor
A Python-based language you write in plain, English-like syntax, with an editor extension to make coding in it easy.
Aquashell
A shell-style terminal written in Python, in the spirit of PowerShell and Command Prompt, with built-in commands and bash support.
Mog1
A small language model that generates text and answers questions, including how programming functions work.
Plus micro:bit extensions and more experiments, all on our GitHub.
Holo means whole. Graph means to write.
We write the whole stack in the open, from kernel to language to interface, so anyone can read it, run it and make it better.
Follow the build.
Join the Holograph list for new releases, new open source projects and behind-the-scenes builds.
© 2026 Holograph. Every project is open source.
