[kurouna]

I agree that extensibility is one of the core charms of Emacs!

That said, when it comes to keybindings, I’ve actually stuck with about 95% of the defaults. The only exception I can’t live without is exactly what you mentioned:

(global-set-key "\M-g" 'goto-line)

I've used that for so long that my fingers just do it automatically. It’s funny how even a "minimal" user like me has that one specific rule that feels essential.