[chirp_users] devuan/debian flatpak install issue

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

I've searched mail list archives and removed flatpak, with dependencies and reinstalled, making sure I have internet connection. Still getting the same error.

any other tips?

thank you