How to test the package Prerequisites Install flatpak and flatpak-builder Install org.freedesktop.Sdk extenstion flatpak install org.freedesktop.Platform/x86_64/23.08 select user Install org.freedesktop.Sdk.Extension.rust-stable flatpak install flathub org.freedesktop.Sdk.Extension.rust-stable/x86-64/25.08 select user Install steps clone this project clone the lockbook repo here generate a cargo-sources.json file based on lockbook repo here go back to net.lockbook.Lockbook and run flatpak-builder --force-clean --user --install --repo=repo --install builddir net.lockbook.Lockbook.json run the app flatpak run net.lockbook.Lockbook