There are a couple of places in the RPC package that depend on global variables which ought to be removed and replaced with more explicitly managed states.

• the nodein the client test package should be replaced in individual tests with the appropriate fixtures.
• in the core service package env should be constructable, and all of the dependencies should become methods. This means that the routes will also have to have a dependency on the environment.

This is in support, though somewhat tangentially, of preparing the public API for general consumption.