When using flatpak-cargo-generator, the crates cannot be placed in the
build dir before the build happens, so we must change the CARGO_HOME env
variable.
It's the same as 'development' only with a different app ID.
Allows to use the nightly Flatpak and develop using a custom flatpak
manifest at the same time.
Now that the stable release is on the same codebase, it should be less
necessary to have 2 development builds.
Also since most performance issues have been fixed, it should not be
necessary anymore to build the nightly version in release mode.
This drops the script we used to build fractal. And uses know only
meson. This also drops the need for specifying sources since cargo does
that for us.
This also bumps the meson version.
This also drops the build option `skip-cargo-build`.
Most of the changes are comming from https://gitlab.gnome.org/World/pika-backup
Kévin Commaille
Julian Sparber
Veli Tasali
Alejandro Domínguez