just want to share some notes about my experience with simplex desktop.
go here to download the appimage: https://simplex.chat/downloads/#desktop-app
you can then:
chmod u+x ~/Downloads/simplex-desktop-x86_64.AppImage
assuming you use standard download location.
and run it:
~/Downloads/simplex-desktop-x86_64.AppImage
then magically, back in your terminal (open another session), check your mounts, and you will see a new entry at the end of the list, something like this:
simplex-desktop-x86_64_594d9f9f940c843946e86def816d28d1.AppImage on /tmp/.mount_simpleNlnGNH type fuse.simplex-desktop-x86_64_594d9f9f940c843946e86def816d28d1.AppImage (ro,nosuid,nodev,relatime,user_id=1000,group_id=1000)
the important part is the second bit:
/tmp/.mount_simpleNlnGNH
cd to it:
ls
and you'll see this:
AppRun chat.simplex.app.desktop simplex.png usr
you want to copy the .desktop and .png files to your profile:
cp chat.simplex.app.desktop ~/.local/share/applications/
cp simplex.png ~/.local/share/icons/
then the last step, to make it all stick:
cd ~/Downloads
cp simplex-desktop-x86_64.AppImage ~/.local/bin/simplex
and voila, you will now have a desktop icon that can launch it, and from terminal `simplex` will also launch it.