I'm new here, so apologies if I should have made a new topic.
Thanks for this great list of desktop apps to try.
I'm trying to get Signal-desktop to work in a Libertine container, on my Vollaphone, running UTouch 16.04 I tried Axolotl from the open store, without success.
I"ve managed to get Banshee working in a container, and I saw these install instructions on the Signal website.
Is it possible to add the package directories to a libertine container, as described in these intructions, using the key? I saw there is the option to add package directories in Libertine container manager.
Many thanks,
David

https://www.signal.org/download/linux/
Signal for Debian-based Distros

NOTE: These instructions only work for 64 bit Debian-based Linux distributions such as Ubuntu, Mint etc.

1. Install our official public software signing key

wget -O- https://updates.signal.org/desktop/apt/keys.asc | gpg --dearmor > signal-desktop-keyring.gpg```
cat signal-desktop-keyring.gpg | sudo tee -a /usr/share/keyrings/signal-desktop-keyring.gpg > /dev/null

2. Add our repository to your list of repositories

echo 'deb [arch=amd64 signed-by=/usr/share/keyrings/signal-desktop-keyring.gpg] https://updates.signal.org/desktop/apt xenial main' |
sudo tee -a /etc/apt/sources.list.d/signal-xenial.list

3. Update your package database and install signal

sudo apt update && sudo apt install signal-desktop