So, I did a whole asciinema demonstration to show you, but it was getting tedious. It started to turn into a whole tutorial, and I really didn’t want to go there. That’s why it’s taken so long for me to reply.
But there are three things I do with nnn:
move things. I use the tabs (1-4) to open different directories, space-select multiple items, and ‘v’ to move selected items to directories
bulk rename. Again, space-select and ctrl-r to bulk rename. Often, I don’t even select, I just ‘R’ to bulk rename the whole directory. This opens my text editor with all of the file/Dir names; edit freely, save, exit, and nnn renames whatever changed.
move/copy to remote locations. With ‘c’ nnn can mount a remote directory over ssh in a tab, and it works just like a local directory, with copying, moving, and renaming seamlessly between tabs.
I don’t “live” in nnn; it’s a tool I open when I want to do certain things - it’s fast enough to use this way. But you certainly could, since nnn can fork shell processes in selected directories.