Jumping to line numbers can be done with mouse. Refactoring and search/replace can be either sed or grep and copy/paste. Filtering text through a command can be

Jumping to line numbers can be done with mouse. Refactoring and search/replace can be either sed or grep and copy/paste. Filtering text through a command can be done in your shell. Nano has syntax highlighting. Importing from a file is copy and paste. Not sure when you really need column numbers. Split pane editing is tmux or multiple windows. Now I'll take my customized and plugin-full neovim setup over that any day, but that does not mean a developer cannot be fully competent with nano. I've worked with large projects where I didn't have access to neovim or my setup and just zsh and vi were enough to get the job done. Having to use nano would have been more of an inconvenience but it would have not been in any way undoable. Understandably, a dev would be more productive with their preferred setup, but if a dev couldn't work without it, that would be a red flag.