I like my ZSA moonlander MK1 to tilt out and forwards (like my hands are resting on the top of a big bouncy ball) without tenting the thumb clusters.

Printed this in 2 interlocking pieces so that each can fit in the build volume of a Prusa Mini (180mm cube).

Has holes for M2.5 screws to mount keyboard and tabs on the underside that I stick rubber feet on.