The `context` package provides functions to embed parameters within a context object, and also functions to create contexts.

The `dnsregister` task implements a server which can register DNS entries */.

The event package implements events, an event source and an event receiver.

The `expr` package implements a generic expression parser and evaluator, and interpolation for strings.

The `httpserver` task implements a server which can serve requests over HTTP, HTTPS and FCGI */.

Package `log` implements a simple logger that can be used to log messages */.

The `nginx` task spawns an nginx server, and can test and reload the nginx configuration.

router package implements a http.Handler and the ability to register routes on a gateway */.

package `task` implements a generic task runner, which can be a source of events */.

The `types` package implements variable types which can be used in configurations.