I'm not judging you for this, btw. I find it
extremely difficult to meaningfully measure in a dollar amount someone's contribution to a FOSS project, once monetized. The whole thing is messy. Honestly in general I find it quite difficult to measure labor value at all, which is why I guess basically every corporation on earth just lets "the market" decide, but that feels too arbitrary to me, and "the market" doesn't seem real when it gets to arbitrarily pay someone differently based on whether their passport says "India" or "USA."
I've been experimenting with just throwing my hands up and doing flat profit share, but we haven't really had an opportunity to really try this at scale (for a bunch of boring reasons), but I'm curious how it'll look. I don't think we'll have the crazy huge ratios you do on your FOSS though so I can see why that wouldn't be feasible for someone in your position.