If it turns out to be at all useful with regard to maintaining revenue-generating code in production, $25 per year is a laughably low ask, even if it's only useful some of the time for some of the people.
Figuring out which people and when is, generically, a matter of doing your homework with customer development and targeted marketing, and then further improving your marketing surface as you learn more about who is a customer and how to find them.
Going from "this might be useful" to a working business model is, of course, a deeply nontrivial problem...but it's one that many people have solved before, and it's a heck of a lot easier if you don't start with "maybe $25 per year."
Figuring out which people and when is, generically, a matter of doing your homework with customer development and targeted marketing, and then further improving your marketing surface as you learn more about who is a customer and how to find them.
Going from "this might be useful" to a working business model is, of course, a deeply nontrivial problem...but it's one that many people have solved before, and it's a heck of a lot easier if you don't start with "maybe $25 per year."