A toy 64-bit operating system.

Features • Getting started

• Featuring a unique file system: zipfs. Your whole file system is mapped in memory from a single zip archive 😙👌
• Re-live your glory days with keyboard and mouse drivers from the PS2 era.
• Run RIP relative executables in userland with support for a whopping 1 system call(s)!
• The kernel is written in nasm, C, Rust and Zig for maximum spaghetti!
• NoTakeBack heap-allocator, don't worry about free()'s, you can't anyway!
• And of course: you can render a mandelbrot!

A little appetizer of what you'll experience before we begin.

We need a few dependencies before we can compile and run lappis.

# Arch
pacman -S nasm qemu mtools clang rustup zig

apt install -y nasm clang mtools

# Can't believe this is the recommended way to install rustup...
curl https://sh.rustup.rs -sSf | sh

snap install zig --classic --beta

We need to tell Rust to use the nightly channel and configure it so that we can build freestanding targets.

rustup toolchain install nightly
rustup override set nightly
rustup component add rust-src --toolchain nightly-x86_64-unknown-linux-gnu

Now we are good to go!

Just run!

make run

In the near future:

• Scheduling
• shell / pid 0 aka init

The name original name was lapis, which means stone in latin since an operating system acts as the foundation for what's to come. However, it fits even better than we imagined since this OS is as dumb as a bag of rocks.

Later, the name affectionately became Lappis.

• https://os.phil-opp.com/
• https://wiki.osdev.org/
• https://github.com/SerenityOS/serenity