This configuration is for Doom Emacs (to be put in ~/.config/doom or
~/.doom.d). If you want to check my previous configuration, have a look at the
before-doom tag.
Emacs' defaults are still largely outdated. While I have been using Emacs for
more than 20 years and despite a recent rework with use-package (see
before-use-package), my setup was largely inferior to what Doom Emacs provide
by default, notably speed, visuals, and functionalities. Modern features are
always a bit difficult to integrate properly, like LSP, Tree-sitter or just
childframe. Doom Emacs helps a lot for this. Moreover, many of my own
customizations are already present in Doom Emacs.