The Flathub build of Lagrange now additionally includes a version for 32-bit ARM, which means you can install it on Raspberry Pi running a 32-bit OS.
Runs great on my Raspberry Pi 400.
@bbbhltz There already is "app/fi.skyjake.Lagrange/aarch64/stable" on Flathub, but haven't been able to confirm how well it works. Running 32-bit only myself.
@jk great news! I also have the Pi400but use the 64-bit RPiOS.