Favorite mechanical keyboard customizations ...?

I know the Moonlander is all the rage right now, but I ordered a plain ol’ Ergodox EZ. Legs, wrist rest, the whole nine yards. Kailh Coppers for switches. It just shipped (5 minutes ago I got the email!), so I’ll have it soon.

I have some preferences regarding tilting/tenting/splitting for ergo purposes, and I think this keyboard should make all of those happen - but other than the basic setup of the keyboard, are there any “mods” I should be looking at, either for function or just for fun?