> basically an open REST service
Be careful with that, it restricts your customers to a certain lightmillisecond distance from your server - if the plugin is intended to be real-time.
Be careful with that, it restricts your customers to a certain lightmillisecond distance from your server - if the plugin is intended to be real-time.
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."