Ktor Toolkit — Start Here

The seven libraries are the easy part. The hard part is that everyone who touches the service solves the surrounding problem differently: one parses ?page by hand, one invents an error envelope, one puts the repository call in the route body. You get a codebase where every endpoint is defensible alone and none of them match.

Route before you build. One cheap pass decides which skills apply, and it costs less than rewriting an endpoint that was invented instead of assembled.

The phases

Run these in order. Do not collapse them, and do not finish one without loading what it names.