A complete and up-to-date version of the following documentation is available in the Igalia Documentation.
First of all, you will need to obtain Flatpak for your GNU/Linux distribution.
% flatpak remote-add --user --if-not-exists webkit https://software.igalia.com/flatpak-refs/webkit-sdk.flatpakref
Note that passing --user to the flatpak
command is optional, and it operates on the user directory, which
does not require root privileges. Feel free to remove the
parameter from the command examples if you want to install applications
system-wide for all users.
Available applications, and their app-id identifiers:
There are some additional files to install
a single application directly (.flatpakref), adding the repository
(.flatpakrepo), and the public PGP key used for signing. Most likely
you won't need to use those directly.