Comment by CaptainFever

I'm a junior so please take this with a pinch of salt, but yeah this is what I intend to do when I do open source too.

Once I've finished scratching my itch, I will only spend T hours per week on the project:

    T = patron_weekly_income / 20

Where:

    1 <= T <= 40

Where the min of 1 hour is intended to "get the project off the ground", and the max is for work life balance (any additional income is then either profits, or to be reinvested in other contributors).