The first thing I did (28 years ago) was to remap Delete and Alt, swapping them, pretty much a necessity if you are an Emacs user. On the standard keyboard it'

The first thing I did (28 years ago) was to remap Delete and Alt, swapping them, pretty much a necessity if you are an Emacs user. On the standard keyboard it's literally just Prgm Del Alt Alt Del Prgm. However I have since replace the keyboard controller and use my own firmware now in where the swap is hard coded.