The short answer
Usually, after a check. Might hold something you care about. Look inside before removing it.
What is it?
On macOS, Podman runs containers inside a Linux virtual machine. Its disk images live in ~/.local/share/containers/podman/machine, and they hold all your Podman images, containers and volumes. Typically several GB to tens of GB.
Podman's Linux VM disks, with all images and containers inside. Prune from Podman rather than deleting the files.
What happens if you delete it?
No. Deleting a machine’s disk loses its images, containers and volumes; podman machine init creates a new, empty one.
How to remove it properly
With the machine running, podman system prune --all --force removes unused containers and images, permanently (volumes are kept unless you add --volumes). To remove a whole machine you no longer use, run podman machine rm <name>.
Use the tool’s official command: podman system prune --all
How MoreRoom helps
MoreRoom recognises this item and labels it “Review first”: it shows what’s inside, its size and last use, so you can decide. Nothing is removed without your say, and everything goes to the Trash first, with Undo.
When the tool is installed, MoreRoom runs its official command for you (podman system prune --all) instead of deleting files — and tells you that this step can’t be undone.
Frequently asked questions
Is it safe to delete Podman machine files on Mac?
Usually, after a check. Might hold something you care about. Look inside before removing it. No. Deleting a machine’s disk loses its images, containers and volumes; podman machine init creates a new, empty one.
Will Podman machines come back after I delete it?
No. No. Deleting a machine’s disk loses its images, containers and volumes; podman machine init creates a new, empty one.
How do I remove Podman machines properly?
With the machine running, podman system prune --all --force removes unused containers and images, permanently (volumes are kept unless you add --volumes). To remove a whole machine you no longer use, run podman machine rm <name>.