Oddbean new post about login | logout I'll have to look into that. There's no readymade for #Manjaro so I'd have to compile it, assuming they make the source code available and it's up to date.
I think it doesnt run in arch based distros, at least in arch linux it doesn't run, but it runs in debian based distros. You can find more infos here: https://haveno.exchange/
I might have a look in the AUR tomorrow. It is possible to install deb packages on arch with debtap, but I always seemed to get that wrong so I'll see if someone has done it for me :)
You probably don't need to install the deb package. You can do similar as you can with bisq by extracting out the contents of the deb package and running the haveno binary. If fails to run due to any dependencies required, install using normal way