(Having read the Reddit thread for a while)

Macs don't appear to have support for containers which is what Docker is. Well that is probably bollocks because they are *BSD based and I know that FreeBSD at least has a form of containerization and I seem to recall that the whole container thing was invented on a BSD - "jails".

So Docker can't run native on iStuff. You have to run it within a Linux VM. I gave up on Googling for "apple mac jail" 8)

The reason why Docker runs slowly on Macs is because it is running under emulation within a VM.

Unfortunately, Macs are not cool enough to run Docker, so there 8)

Cheers Jon

Still feels several times faster than using an option like Vagrant. (haven't found a container that didn't cold start in less than 5 seconds; 3+ minutes for common Vagrant setup is pretty common)