Few years ago I've read about some local non-monetary unit of work and they used term "kopa" which translates to "pile" or "a lot" in English. And it was if I remember correctly 1 hour of work. It may be related to https://en.wikipedia.org/wiki/Kopa_(number) or maybe it was just inspiration.

Common sense unit? Cups of coffee needed to complete work.

This really helped me organize my own thinking — thanks.