I have a simple SaaS product that plans emergency shifts for dentists (evenings and weekends). The value is in 1) fair planning, 2) a single source of truth on

I have a simple SaaS product that plans emergency shifts for dentists (evenings and weekends). The value is in 1) fair planning, 2) a single source of truth on who is on call, and 3) reminders. It makes $300 a month with minimal cost and almost no time spent. Since it is B2B I only have to send invoices once a year. Anecdata of course, but it has been like this (and profitable) for the last 7 years. At least proofs it is not impossible (I also never really invested lots of time in it to get to this state) I think i can bring it to 30k a year with sufficient effort, but then again, my salary is higher than that so it doesn’t make enough sense to switch my time to do so. (The growth problem of course is sales, not tech)