Tools for the layers

Keep the base still.
Move with intent.

Frostyard tools have separate jobs: Firn installs the operating system, Updex manages system extensions, and ChairLift brings workstation maintenance into one control surface.

FN

Operating system installer

Firn

↗

Install the image, without blurring the boundary.

A guided installer for published Frostyard images. Firn selects and verifies the payload, makes storage and security choices explicit, and confirms the destructive target before writing.

Installer ISO · guided local install
  • Install the four bootc products
  • Verify image identity before writing
  • Make encryption and unlock choices explicit
  • Confirm the exact target disk
Inspect Firn ↗
UX

System extension manager

updex

↗

Extensions, with a proper control surface.

A Go CLI and SDK for discovering, enabling, updating, and retiring systemd-sysext features. It reads ordinary transfer definitions, verifies published artifacts, and keeps version retention bounded.

sudo updex features enable <feature> --now
  • Feature and component discovery
  • SHA256 manifests and published signature verification
  • Retry-aware downloads and automatic decompression
  • CLI, JSON output, and Go SDK
Inspect updex ↗
CL

Desktop system workspace

ChairLift

↗

A quiet cockpit for a layered system.

A GTK 4 desktop application for keeping a Frostyard workstation in shape. It puts staged system updates, Homebrew, Flatpak, package health, and extension features in one deliberate place.

chairlift
  • Stage and inspect operating system updates
  • Manage Homebrew packages and trusted taps
  • Work with Flatpak and extension features
  • System health and maintenance shortcuts
Inspect ChairLift ↗

Different jobs, shared direction

Install with Firn.
Shape the layers deliberately.

Updex manages system extensions. ChairLift brings updates, extension features, Homebrew, Flatpak, and system health into one desktop workspace. Neither turns the base into an accumulation of exceptions.