Most people publish Open Source so they are not responsible for bugs. But if you want to turn your software that you wrote for yourself into real software for sale, how good is good enough? How do you even out perfectionism with getting things done?
24 years ago I wrote some software that we sold online. Support was our biggest bugbear but the tools available have moved on significantly since then. Look at an MVP - Minimal Viable Product - and consider how you will roll out updates to your users. Have a fully-fledged testing suite in your development environment Have a way to track significant events that happen on your customer's devices Have a pool of users who can test for you who will do more than take a quick look (harder than you think, they'll just want to tell you that it looks awesome. Once you're launched it's easier to pick from your friendliest support tickets) Set release goals and don't waver from them. Don't get an inspired idea and decide to leave something unfinished and go off after the new thing. Plan it out and give it a time that's appropriate Have someone you can be accountable too, even if it's just something like #100daysofcode or a discord group
When you code/program than test your software and Deploy it. then make maintenance and create a software document which is final step then you can sell your software.
you have identified at least 15 unmet needs. That is 15 things that the customer wants to do which are important and current solutions are not very satisfactory.
Hopefully, you are always testing with consumers throughout your product development process to continue to validate features/prioritization as well as feature execution. If you have to pick between completeness and reliability, go with the latter. Because new products/services have a learning curve, there will be a slew of enhancement requests once customers have had a chance to use them. A flawed solution will not be tolerated, so err on the side of clean code and fewer features.