Asterhold

ASTERHOLD   /   OPERATING SYSTEM

A kingdom
in the stars.

Asterhold is a clean-sheet, Rust-first operating system. Built in a virtual machine, one observable mechanism at a time.

Explore the roadmap Read the field guide
An original star chart of a citadel suspended on a faceted island
FIG. 01   /   THE ASTRAL KEEP
Development status Active · VM candidate
Architecturex86-64 / Rust
Test environmentQEMU + UEFI
Latest milestone028 · The VM candidate ↗

01   /   THE PROJECT

An operating system
you can understand.

What happens between pressing Enter and a program getting its own memory? Asterhold makes that chain visible: Court parses the command, the Crown checks authority, and the kernel builds a protected place for the program to run.

We build it to learn where those boundaries belong. Each mission pairs a small change with a lesson and an experiment that can fail.

Read the vision

02   /   FIELD VOCABULARY

Inside the Kingdom

ENTRY 01 ↗

The Crown

Enforces each request against the running context’s authority.

ENTRY 02 ↗

Court

A protected serial shell for inspecting the Kingdom and launching approved apps.

ENTRY 03 ↗

Realms

The proposed home for an Earl’s private documents, settings and saved work.

03   /   IN THE WORKSHOP

What runs today?

One virtual CPU runs protected Court beside one approved application. A timer can interrupt a runaway counter; cleanup revokes its mappings, clears private memory and returns its frames.

The development candidate has no authenticated Earl session, persistent files or native network. There is no public OS download.

Tour the VM candidate

THE ROAD TO V1

From first boot to a useful server.

Follow the completed missions and the decisions still ahead, including how a future Kingdom could host RatDB.

View roadmap