### Nice to have
- * throw out Catalyst::Test's remote_request in favour of
- Plack::Test::ExternalServer
- * make sure we're running under a server that support psgi.streaming - maybe
- just load the BufferedWrite middleware, although that might break things
- relying on ->write doing an unbuffered write
* throw away the restarter and allow using the restarters Plack provides
* remove per-request state from the engine instance
* be smarter about how we use PSGI - not every response needs to be delayed