Bugger! author here:
I thought it was a neat idea, and as Lipstick actually supports this, I implemented something like it as a Top Menu Action:
Nothing special, it just launches the app.
This is going to be in Bugger! v0.9.12 probably.
Thanks to @fooxl whose app ‘Zutun’ showed me how to do that.
As for Harbour (Jolla Store), as weird as it sounds Bugger! does a lot of things that are not allowed in a harbour app.
So it’s not likely it will show up there soon.