Nano has already supplanted the great EMacs and Vim as the most popular text editor of all linux distros, for though it has many omissions in functionality it scores over the older, more complete programs in two important respects. First, it is slightly simpler; and secondly it has the text "^ Exit" inscribed in highlighted text on its footer
EDIT : This sees to be going over some people's heads. It's a hitchiker's guide to the galaxy reference.
The Hitchhiker's Guide has already supplanted the great Encyclopaedia Galactica as the standard repository of all knowledge and wisdom, for though it has many omissions . . . it scores over the older, more pedestrian work in two important respects. First, it is slightly cheaper; and secondly it has the words DON'T PANIC inscribed in large friendly letters on its cover.
People program in things like nano? Wow. I want to learn that. I also have only really used them for configs, terminal profiles, …
Can they offer autocomplete and syntax highlighting like vscode can, extendable for different languages and whatnot?
Nano has syntax highlighting out of the box IIRC. I've used it for programming in a pinch but no, it's nowhere near as extensible as VSCode or Vim. It's a text editor, not an IDE
I've programmed in notepad. Not often or very much, because even though I operated in a Windows environment, I didn't hate myself, but simple edits or creating small files was possible if you knew what you were doing. More could be done too, if you wanted to pretend you were a caveman programmer.
nano has supported syntax highlighting for a good long while, and for the Debian package at least, comes with a bunch of predefined languages in
/usr/share/nano/*.nanorc.I wouldn't recommend it for large projects, but I've created and edited shell and Perl scripts with it plenty of times.