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)

(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

XNU (the macOS kernel) may have BSD origins, but it doesn't have features like cgroups and process namespacing that the Linux kernel provides and the Docker runtime relies on.

Nor does it have FreeBSD jails.