I don't think anyone on Upwork or whatever other job board would complain if they were out there asking for custom work and you showed up with a ready-made prod

I don't think anyone on Upwork or whatever other job board would complain if they were out there asking for custom work and you showed up with a ready-made product. Beyond that, every business owner kvetching on Twitter. Problems are everywhere! Certainly can be very hard to get 10 business owners with the same problem to all line up and pay thousands for your software, but problems are easy to come by. Edit: filtering for problems solvable by any particular solo developer's skillset in less than 2 years is another challenge.