The difference from Obtanium seems to be that it presents an app-store front end, so you can browse and search for packages. Obtanium requires manual setup for each repo you want to add.

In X11 you can just use ‘exec app-name’ and it will replace the terminal window with the app. In Wayland, I got it to work with this:

setsid app-name & disown
sleep 1
exit

Without the ‘sleep 1’, it exits the terminal too quickly for the app to launch, at least when I tried it.

*Edit: In order for it to work as a script, you still need to type exec first. Or, in my case, I aliased “open-app” to “exec open-app”.