Steam Flatpak

Steam Flatpak

Flatpak is a utility for software deployment and package management. It offers a sandbox environment in which users can run applications in isolation from the rest of the system.

SteamTinkerLaunch Flatpak can is intended for use with Steam Flatpak. It will not work with regular Steam. The Flathub repository for SteamTinkerLaunch Flatpak is available here.

Caveats

The nature of Flatpak is to run applications in sandbox - Meaning they are isolated from the rest of your computer. This is in the interest of security, but it comes with some limitations.

• It only supports Steam Flatpak, as Steam Flatpak compatibility tools are intended to be installed as Flatpaks. SteamTinkerLaunch Flatpak was created with Steam Flatpak in mind and therefore does not support regular Steam installs. Please see the Installation wiki for other methods of installing SteamTinkerLaunch with regular Steam.
• Currently, Flathub doesn't list addons/extensions of runtimes on their website, so it must be installed via the command line or a frontend such as KDE's Discover.
• Only a limited number of the optional dependencies are included, as it is not viable to include every single optional dependency. General dependencies such as jq, imagemagick, and rsync are included, but applications such as MangoHud, or Nyrna are not included. You should be able to use the Flatpak versions of Linux applications if they are available.
  • If a Flatpak version of your application is not available then it can't be leveraged by SteamTinkerLaunch. If you're desperate for an application to be supported in Flatpak, you would need to approach the relevant software developer and politely ask them for Flatpak support.
  • If there is a missing general dependency which is not an application, you can politely request that it be added in an issue on the SteamTinkerLaunch Flatpak repository.
• Currently, SteamTinkerLaunch doesn't show up in the system's application menu, so must either be launched via the command line, or via Steam Flatpak.
  • See this comment on flathub/com.valvesoftware.Steam.Utility.steamtinkerlaunch#43 for more detailed information on the reason this is not currently available.
• Certain applications, such as Vortex Mod Manager or other Windows software that SteamTinkerLaunch can install for you, may not work exactly as expected. It may be missing things like Mime-Type support (which is used to handle the "Mod Manager" button on Nexus Mods), and by default will likely be unable to access external drives.
  • Flatpak filesystem permissions and other settings can be managed from the command line or from a frontend like Flatseal which makes it very simple to graphically configure environment variables and filesystem permissions.

Installation

See Flatpak installation section of the Installation wiki.

Usage

The tool is installed as a Steam Compatibility Tool by default, so all you have to do is either enable the tool globally in Steam's options, or on a per game basis as explained on the Steam Compatibility Tool page.

It should also work as a Steam launch option for native Linux games by adding steamtinkerlaunch %command% to your game's launch options.

Uninstalling

See Flatpak Uninstallation.

Reporting Issues

It's up to you where is best to report issues, use common sense and your best judgement.

You can report general issues with STL in a new issue here, or if you feel it may be specific to Flatpak in the existing Flatpak discussion issue.

Issues relating directly to the Flatpak package itself (such as missing dependencies, or SteamTinkerLaunch Flatpak-specific oddities) can be reported on the Flatpak's issue tracker.