[PaulMorgan]

How about a retainer agreement? They purchase some of your time each month. This limits your time devoted to their concerns but could also be a distraction from the startup. The rest of your time is devoted to your startup with the retainer giving you more runway.

Any chance your current employer could become a paying customer? Starting off with a customer gives you credibility for capital and other customers.

[ceoinvest]

Retainer--that's not a bad idea. So they could potentially hire me out for X hours per month, and there would be an upper bound on X?

Any chance your current employer could become a paying customer?

Already are, actually.