I finalized Caffeinated today with only a couple of minor changes, so it's now available for anyone to build and run on GitHub.

The build itself was relatively straightforward, but the quirks of Swift and Xcode were a departure from TypeScript in VSCode or SQL in DBeaver. The most interesting difference was how Xcode buries the built .app deep in DerivedData, outside the project folder entirely, instead of somewhere human-findable—that's a product decision I don't understand.