VOMPECCC: A Modular Completion Framework for Emacs
Completion is not a feature or UI, but instead it is a system composed of at least half a dozen orthogonal concerns that most users never think about separately...
Guide to Modern Emacs Completion: vertico, corfu & friends
jneidel.comExplains relevant concepts, the way and goes through the vertico, corfu, consult, marginalia, eglot, affe and cape configuration.