John,

Here's how to install flatpak. $ just means your using the regular user terminal,

if you typed "sudo su" you'd be at the root terminal which is #.

Download the latest CHIRP flatpak from here:

https://trac.chirp.danplanet.com/chirp_daily/LATEST/

As of this moment the current version is https://trac.chirp.danplanet.com/chirp_daily/LATEST/chirp-daily-20220515.flatpak

Rest of the work is from the terminal.

First, install Flatpak:

$ sudo apt install flatpak

The other howtos seem to have missed this next step. You need to use
flatpak to install the “freedesktop” platform. First update flatpak
and your paths.

$ flatpak update -v

This will give you a warning about paths, something like:

Note that the directories

'/var/lib/flatpak/exports/share'
'/home/[username]/.local/share/flatpak/exports/share'

are not in the search path set by the XDG_DATA_DIRS environment
variable, so applications installed by Flatpak may not appear on your
desktop until the session is restarted.

Since we now have to log out anyway, now might be a good time to make
sure you are in the dialout group.

Use the groups command to list your active groups. If the group
“dialout” does not appear, add yourself to the group (replace
[username] with your username):

$ sudo usermod -aG dialout [username]

Now restart your session (or computer) and return to the terminal.

~$ flatpak update -v
Looking for updates…
Nothing to do.

Don’t worry about installation directory warnings if you haven’t
installed anything yet. Those will be created later. Important is that
we got rid of the path warning. Moving on….

Now you need to get the Freedesktop repository installed:

$ flatpak remote-add --if-not-exists flathub
https://flathub.org/repo/flathub.flatpakrepo

and then install the Freedesktop Platform:

$ flatpak install flathub org.freedesktop.Platform//19.08

This might take a while its a big (~0.5Gb) download. Grab some coffee
and make some QSO’s….. Maybe check out my club’s website:
http://w6ek.org

Finally we can install Chirp! (replace .flatpack filename with your
downloaded version)

$ flatpak install Downloads/chirp-daily-20220515.flatpak

You’re done! You can run chirp from your applications menu or from the
command like like this:

$ flatpak run com.danplanet.chirp

My distro has a defective GIMP application so I used flatpak to install the app from there, the only negative is that I cannot type "gmp" from a terminal and have gimp run, I have to use teh menu entry.

Try it - it's excellent and it's the future of applications in Linux.

73

DR