#dotnet

The .NET options pattern ships three interfaces that look interchangeable and are not. When each one reads configuration, what that means for reloads, and the three pitfalls that show up in real codebases.

Roslyn source generators are usually sold as boilerplate killers. Elarion uses them as the architecture: one attributed class becomes a DI registration, an HTTP endpoint, a JSON-RPC method and an MCP tool at build time — and the costs of that choice are just as instructive as the wins.