OS: Devuan GNU/Linux 4 (chimaera) x86_64
I'm running devuan, an offshoot of Debian.
in attempting to install the latest flatpak and in the same directory,
by using the following;
sudo flatpak install chirp-daily-20220219.flatpak
error: The application com.danplanet.chirp/x86_64/master requires the
runtime org.freedesktop.Platform/x86_64/19.08 which was not found
This is an artifact of requiring Python 2, which is EOL. I think 19.08 is the last platform providing it and it has been deprecated for some time. It's apparently no longer available, but here may be a workaround.
Thanks,
Richard