Building the Flatpak

Install dependencies

Barrier is built against the KDE runtime and SDK, to install them, one should follow these steps:

$ flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
$ flatpak --user install flathub org.kde.Platform/x86_64/5.12
$ flatpak --user install flathub org.kde.Sdk/x86_64/5.12

You should replace x86_64 with your architecture (i386, arm, aarch64, x86_64) and 5.12 with the current version of the runtimes and SDK used in the com.github.debauchee.barrier.json file.

Flatpak builder

flatpak-builder can be installed as a flatpak, this provides the benefit of having a possibly more up-to-date version of flatpak-builder. To install, follow these steps:

$ flatpak --user install flathub org.flatpak.Builder

To make compilation smoother, we use make, which can be installed from your package manager.

Compiling the flatpak

First thing you'll wan to do if you haven't already, is clone the repo:

git clone https://github.com/flathub/com.github.debauchee.barrier.git

Then cd com.github.debauchee.barrier and make or make FLATPAK_BUILDER="flatpak run org.flatpak.Builder".

Cross compiling

If you're on x86_64 and want to compile for i386, this can be done via:

make BUILDER_OPTIONS="--arch=i386"

Keep in mind though, you'll need to install the i386 platform and SDK.