I actually went a little bit down the nvim route as well, since it has nice built-in shell support. What I think you're missing with just nvim is the tmux scri

I actually went a little bit down the nvim route as well, since it has nice built-in shell support. What I think you're missing with just nvim is the tmux scripting capabilities and of course the session management. It's pretty easy to script up a tailored set of tmux sessions/windows/panes. I do this on initial login. Other solutions like tmuxinator/tmux-resurrect exist to automate this setup, if you don't want to script it.