Comment by Kholin

For me, the "modern" way is when I meet any problem on updating my emacs config files, just ask Claude or Gemini, they will help you to find solutions for the most of common problems. The "traditional" way is to know the basic keybindings, and write an actual project directly, whenever you found there's lack of a feature, just search and config for it. After a period, you'll got a stable config for long term use.