I've gotten made fun of because I've said my "IDE" is `tmux` in the past; my typical development environment is a tmux split, where an editor (usually NeoVim, sometimes Emacs) does editing, and the bottom half is a terminal running either a dev server or just the compiler command.
It's not perfect, but I like how I can basically swap any component out (except tmux itself).
I think tmux is overrated, at least when running locally. Tiling WM gets you the same efficient screen layout and keybind driven navigation, and it'll manage also graphical windows that you'll inevitably end up having (like browser). Also you'll avoid any tmux-in-tmux issues if you do connect to remote hosts, and all the terminal features (copypaste, urlgrab, scrolling, search etc) actually will work properly.
> I think tmux is overrated, at least when running locally. Tiling WM gets you the same efficient screen layout and keybind driven navigation
Funnily, I have made the opposite path, moving from a tiling WM to tmux into a simple xterm. Tiling wm are overrated, since tmux gives you the same functionality, and you can detach your session easily.
What I'm sorely missing is a way to "freeze" all my tmux processes so that they can be recovered in the case of a system reboot.
I know the numbers off by heart so can switch without looking.