NtrixOS Embedded

An experimental "from scratch" operating system project aimed at the RP2040/RP235x microcontroller.

Goals

• Run on real hardware, no VM/emulation
• Provide a single user, single process OS
• Inspired by DOS and other early OS (terminal based)
• Can a full OS be written in Rust?
• Ability to load external programs
• Create kernel on top of embassy framework
  • Removes the need to write a HAL
  • Can use pre-built state machine for kernel

Structure

• kernel - The Kernel
• sdk - Shared types and definitions for kernel + apps to link to.
• libsys - A friendly Rust interface for using the ABI
• libsys-macros - Proc macros used by libsys
• shell - User control via CLI
• apps/ - external apps

Hardware Requirements

• RP2040 or RP235x microcontroller
• ST7920 display

Contributing

This is just an personal experiment. Therefore this project is not open for contribution.

License

Copyright (c) 2026 Leo Spratt. Licensed under Apache License, Version 2.0.