My database technology startup, Fireproof, recently hung out a shingle for custom app development, primarily as an adoption tactic. If we really do have the most productive tools for front-end devs to build data-driven apps, we should showcase them by writing code for real-world customers. Over time we expect services revenue to be a smaller slice of the pie, but if we can make creating the first round of social proof into a financially sustainable practice, we can scale with more confidence because we know we built what customers want. We just launched this today, so you'll have to follow up if you want to know how it goes: https://fireproof.storage/service-and-support/