After all of the shenanigans of the last few days I was probably not in the best mental shape to go along to the Developer Meetup at C4DI tonight. But I went along to meet the folks and hear about Docker. Adam Carlile works at Board Intelligence and uses Docker to build highly secure, discrete systems that generate confidential management reports.
Docker is especially useful to Adam because it provides a way of packaging up a particular configuration of machine into a "lump" of data which can then be transported and executed in a secure way on another device. It is essentially a highly portable virtual machine configuration, but with the advantage that the Docker container is very lightweight and can be layered in a way that makes it very easy to create and amend configurations.
If you like playing with operating systems, or have a need to distribute work in a secure and managed way, then Docker is well worth a look.