This is a flatpak-builder definition file to build both corebird master and current stable branches.
Due to corebird opening a browser whenever a link is clicked, as well as when setting up an account, you need to have xdg-desktop-portal as well as one implementation for it (currently there is only xdg-desktop-portal-gtk as far as I know) installed.
Get Flatpak using these instructions
For the stable version, see Corebird on Flathub: https://flathub.org/apps.html
The nightly version is rebuilt every time a bigger change lands.
flatpak install --from http://baedert.org/repo/org.baedert.corebird.nightly.flatpakref