The client is GPL-3.0-or-later; the daemon it depends on is AGPL-3.0-or-later,
so the package declares both.
The PKGBUILD builds from source the way an AUR VCS package does and installs
under /opt with a desktop entry, rather than shipping the AppImage - which
needs libfuse2 at runtime and integrates with nothing. `npm run pack` still
produces an AppImage for portable use.