Yeah, unfortunately, you can't just mark my mod as a dependency and have it work without changing anything. I don't think I'm allowed to use the same stdlib name as the original (since that internal name is already in use on the mod portal), so the internal mod folder name would be kry_stdlib, instead of just stdlib.
The mod works perfectly if you update that line 3 in control.lua to:
Position = require '__kry_stdlib__/stdlib/area/position'