Excellent work, I am looking for notepad++ equivalent on Mac..
Not having Notepad++ on MacOS is a major pain point for me.
Notably Notepad++ is not project/folder based. It is for editing a file.
Damn, sublime is what I use as my light weight editor ha. Never had trouble opening (relatively) large files.
Notepad++ has what you need to edit a file and not much else, but it also has a decent plugin system.
I looked and it turns out that Notepad++ does have the ability to open a folder as a workspace. So it's an extra option if it is needed.