Build Stork natively (also on MacOS)

Although we don't want to officially support MacOS (the market to run dashboards on Macs is probably non-existent), several developers and power users are interested in reviewing and testing it on MacOS.

This is mostly for developer's convenience, not for end-users.

While the initial goal of this was to be able to run stork on MacOS, this eventually evolved into two things:

1. run on MacOS
2. run on the box natively (without using docker)