flatpak-mask - Linux
Overview
Flatpak-mask manages Flatpak overrides for individual applications. Flatpak overrides allow modifications to the runtime used by an application, enabling isolation and customization of applications. It can be useful for testing, debugging, or providing custom configurations for specific applications.
Syntax
flatpak-mask [OPTION...] [<COMMAND>]
Options/Flags
- -d, –default: Use the default runtime for the application (unmask)
- -m, –mask: Mask the application by specifying a runtime
- -r, –remove: Remove the mask for the application (unmask)
Examples
Masking an Application
Mask an application named "com.example.MyApp" to use the "com.example.runtime" runtime:
flatpak-mask -m com.example.MyApp com.example.runtime
Unmasking an Application
Unmask an application named "com.example.MyApp" to use the default runtime:
flatpak-mask -d com.example.MyApp
Removing a Mask
Remove the mask for an application named "com.example.MyApp":
flatpak-mask -r com.example.MyApp
Common Issues
Missing Runtime
If a specified runtime does not exist, Flatpak will report an error. Ensure the runtime you are attempting to mask to is installed.
Invalid Application ID
If an invalid application ID is provided, Flatpak will report an error. Verify the application ID before masking.
Integration
Flatpak
The flatpak-mask
can be used in conjunction with other Flatpak commands to manage application overrides. For example:
flatpak update --user
to apply overrides to user-installed applicationsflatpak run --command=flatpak-mask
to apply overrides from within a container
Related Commands
flatpak
: Manages Flatpak packages and runtimesflatpak search
: Searches for installed Flatpak packagesflatpak info
: Displays information about a Flatpak package or runtime