flatpak.mser.at

Various things missing from Flathub

This deploys a Flatpak repository that contains various things that are currently not available on Flathub. The main use case right now is for installing a couple of roguelike games on the Steam Deck (as Flatpak is what it supports out-of-the-box and what will survive system updates without manual intervention), hence why there aren't any other packages available (for now).

Both x86_64 and aarch64 variants are available and all packages are rebuilt automatically once a week.

Available applications

Name	ID	Type	Notes
Infra Arcana	`com.gitlab.martintornqvist.InfraArcana`	Game
Sil-Q	`com.github.silquirk.SilQ`	Game	See here if you encounter an error when trying to launch using the X11 frontend

Usage

Adding the repository

To add the repository, use the flatpak remote-add command:

flatpak remote-add --if-not-exists flatpak.mser.at https://flatpak.mser.at/index.flatpakrepo

Alternatively, if you have a GUI client for Flatpak (e.g., Discover, if you are using a Steam Deck) you should be able to download the flatpakrepo file and just double-click it.

Listing available applications

To list all available applications, use the flatpak remote-ls command:

flatpak remote-ls flatpak.mser.at

Installing applications from the repository

To install an application, use the flatpak install command:

flatpak install flatpak.mser.at com.gitlab.martintornqvist.InfraArcana

Breaking changes

Sometimes a change requires manual intervention on existing installations. These are listed here, newest first (and removed once they are no longer relevant):

[2026-06-24] - The repository is signed with a new GPG key: if you added the repository before this date, flatpak refuses to update the installed applications because the new signature no longer matches the pinned key. Remove and re-add the repository to pin the new key (installed applications and their data are kept):
```
flatpak remote-delete --force flatpak.mser.at
flatpak remote-add --if-not-exists flatpak.mser.at https://flatpak.mser.at/index.flatpakrepo
```

Maintainer

Michael Serajnik

Contribute

You are welcome to help out!

Open an issue or make a pull request.

Licenses

AGPL-3.0-or-later (Code and the Infra Arcana icon)
CC-BY-SA-4.0 (Documentation)
CC0-1.0 (Configuration and packaging metadata)
LicenseRef-Sil-Q-icon (Sil-Q icon)

This project follows the REUSE specification.