If you have a service that you'd like to monetize with micro payments, run your own mint on top of your Lightning node.

It's easier than writing an accounting system from scratch and the implementation weight on the backend is virtually zero (have I been paid? Ok!). The complexity is offloaded to the client side. For that, we have a bunch of libraries that help you integrate a simple Cashu wallet into basically any frontend you'd like.

I totally forgot to mention an accidental byproduct that's totally not the point of it all, promise, which is insane privacy.