<3
It doesn't really need to adjust over time. It doesn't need to be capped [1].
One blockchain has 1 minute block interval with a fixed 60 coin reward which translates to one coin per second forever.
[1] https://john-tromp.medium.com/a-case-for-using-soft-total-su...
Off topic:
How hard is it to just clone ETH, change the master key, (do we even need to re-compile?) and have new blockchain?
Surely there is a SaaS for that