# Developer onboarding (summary)

## Prerequisites
- .NET 10 SDK
- Node and npm for UI development
- Docker for local infrastructure

## Local stack
- PostgreSQL, Valkey, and RustFS are required.
- Services use layered configuration (env, appsettings, YAML).

## Common workflows
- Run the stack with compose or Helm profiles.
- Debug a single service by running it locally and pointing others to localhost.
- Use deterministic fixtures for replay and policy validation.