(Graphical) IDE's are great for development, but they're slow to start and heavy to run. Sometimes you just want to take a quick look at an xml or dockerfile and you don't want to spin up the whole IDE for that.
I've recently rediscovered notepad++ for that (on windows), what's your prefered easy-acces-tekst-editor?
For anyone trying it out for the first time: If you aren't sure how to do something, it's probably hitting the spacebar in normal mode. That will bring up a list of shortcuts, including the debugging, file chooser, and actions (for the lip)
There is also a pretty good interactive tutorial. Just run the
:tutorcommand.