This is my own version of an adjustable feet with wheels for an IKEA LACK table.
This can be used with or without the caster wheels.
Some notable design considerations:
Hole dimensions for caster screws:
Screws:
The castors are these 1" low profile caster wheels with locking brake:
https://www.amazon.com/Profile-Locking-Casters-Screwdriver-Furniture/dp/B0BS6B5DJN
The author marked this model as their own original creation.