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Australis OS

Status Docs

Australis OS is a from-scratch x86_64 operating system project by Aurora Softwares. The current milestone is deliberately small: boot a 64-bit UEFI virtual machine from C# and print a message to the screen.

Current v0 State​

Australis OS v0 currently implements:

  • A 64-bit x86 UEFI application compiled from C#.
  • A BOOTX64.EFI entry at the standard removable-media path, EFI/BOOT/BOOTX64.EFI.
  • A QEMU + OVMF boot path.
  • A clean screen followed by:
Australis OS booted from C#

The current terminal is print-only. Keyboard input, commands, filesystems, interrupts, drivers, process management, and Hydrogen integration are intentionally out of scope for this first boot milestone.

Why C#​

The kernel entry is written in C# because C# is close enough to Hydrogen's planned feel to let the project explore OS structure while Hydrogen continues to mature. For v0, C# is compiled ahead of time with bflat using its tiny zero standard library profile, so the result is a native UEFI binary rather than a normal managed application that depends on an existing OS.

Quick Start​

From the Australis-OS repository:

make build
make run

See Building and Running for the full flow.