Even Docker Desktop for Mac works pretty great and they improved the startup. Not really had issues to warrant switching.

Docker for Desktop got better.

I think VirtioFS fixed most unbearable fs slowness.

But Rancher Desktop also got better and I just cannot understand why I would use Docker for Desktop instead of the Open Sourced Rancher Desktop.

My experience on Mac: - colima: Testcontainers cannot connect to the containers when the tests are ran from the command line (I have env vars DOCKER_HOST=unix:///Users/dxxvi/.colima/docker.sock and TESTCONTAINERS_DOCKER_SOCKET_OVERRIDE=/var/run/docker.sock). However, the same tests ran fine in IntelliJ. - Docker Desktop: doesn't have the above issue.

Don't know why.

Maybe this was a typo in your comment, but you should double check to make sure that DOCKER_HOST is set to `unix:///Users/dxxvi/.colima/default/docker.sock` (missing `default` in your line)

I just verified running Testcontainers tests via CLI with those env vars you posted. YMMV

Me and docker desktop for Mac do not get on. I've switched to OrbStack and it's a breath of fresh air.

For several months I've used colima. It seems more performant, and I really don't need the UI. That said, my use cases are pretty basic (mostly just web apps with Docker Compose)

I've been having an ok time with Rancher Desktop, I stopped using Docker Desktop on Windows after they forced me to update to a known broken build with no way to go back (unless I paid for their enterprise version)