In the UK (if you have the space to build your ‘private staircase’…) you will make the steps more ‘easy going’
Optrede=riser closer to 170mm or increase the aantrede=going to more than 220mm
Trede=tread will overlap by no more than 25mm, otherwise you will get a tripping hazard
Open optrede=riser treads will overlap by min.16mm and no more than 25mm
If you don’t have the space…
Aantrede=going will be 220mm and the going set by the pitch of the staircase at max. 42 degree.