A 4K M-code wallpaper keeps the common machine codes on screen all day. Here is what to include, how to design one that stays readable, and its one real limit.
A G-code lock-screen wallpaper is a fine pocket reference and a poor teacher: what belongs on it, how to make one that is actually readable, and the limit.
The machinist wallpaper carries numbers, not codes: the two cutting formulas, tap-drill pairs you actually use, and decimal equivalents, sized for a glance.