I use on Linux the XCompose key (which is assigned the menu key right from the space bar, or the "Print Screen" key), and then "\mu" like in LaTeX. I don't nee

I use on Linux the XCompose key (which is assigned the menu key right from the space bar, or the "Print Screen" key), and then "\mu" like in LaTeX. I don't need to think about it because I have used LaTeX for years. I also use the XCompose to generate € and ß which are special symbols in my native language. This has the advantage that I can use the UK International layout for everything, which makes specifically writing code much more comfortable. Also, the xcompose keymap is just a text file in my home directory, I can extend it at any time and take it with me. The method is also independent from any application. Also, Emacs has an input method which supports "\mu", and this convention is also used in Racket for things like λ.