Signal Desktop Flatpak for arm64 + x86

Unofficial Signal Desktop Flatpak (source)

sudo flatpak remote-add --if-not-exists signal-flatpak https://signalflatpak.github.io/signal/signal.flatpakrepo

sudo flatpak install signal-flatpak org.signal.Signal

flatpak remote-add --user --if-not-exists signal-flatpak https://signalflatpak.github.io/signal/signal.flatpakrepo

flatpak install --user signal-flatpak org.signal.Signal

Depends on Flathub for the runtimes.

Get them from the latest release. These do not auto update.

flatpak install ./signal.flatpak

Signal will be blurry on phosh (pinephone, Librem 5) becacuse of Xwayland scaling. To fix, run with wayland using these arguments: --use-gl=egl --enable-features=UseOzonePlatform --ozone-platform=wayland. Signal must be opened at least once in X11/Xwayland first (just by clicking the launcher) first.
To add the above to the launcher shortcut:
- mkdir -p ~/.local/share/applications ; cp /var/lib/flatpak/app/org.signal.Signal/current/active/files/share/applications/org.signal.Signal.desktop ~/.local/share/applications/
- desktop-file-edit --set-key=Exec --set-value="flatpak run org.signal.Signal --use-gl=egl --enable-features=UseOzonePlatform --ozone-platform=wayland" ~/.local/share/applications/org.signal.Signal.desktop
Use the View menu item to zoom out a few times. It makes Signal much less cramped.
Ctrl+Shift+c will close the current conversation and reduce idle CPU usage significantly.
Notification sounds and mic/camera usage can be enabled in settings.
Running Asahi Linux or otherwise using 16k page sizes? Add --js-flags="--no-decommit-pooled-pages" to your launch options. See here for more info.

The signal-desktop Alpine Linux package now builds on aarch64.
Flare, a really good unofficial gtk signal client.
Alpine APKBUILD (maybe someone could combine efforts with the APKBUILD in Alpine's repos?)
AUR for Arch
COPR for Fedora

If you find this useful would like to contribute money, donate to Signal Foundation, FSF, or postmarketOS.