Init only needs to be explicitly called if you need to run code before calling Run.

New returns an Assembly with any values added as units.

Run assembles units and starts the program.

Main is a global reference to the top-level main unit.

Assembly is a registry of related units.

Initializer provides an initialization hook after assembly.

PostInitializer provides a hook after initialization.

Runner is a unit that can take over the program entrypoint.

Service is a long-running process managed by daemon.Framework.

Unit is a reference to a struct.