Saloon doesn't support non-HTTP integrations, so I decided to give it a try

Here's the very, very first go at extending Saloon to support *any* type of Sender. Shell commands are the first one I've had a go at, and the concept seems to work really well! Not sure if this something you guys are in any way interested in, but I thought I'd show you the concept and hopefully get some feedback. 

https://github.com/assemblerdigital/saloon/tree/non-http-support