Against the alternatives

What this does that the others do not, and where they win

You arrive having already decided against something. A matrix that wins every row is one nobody believes, so this one is grouped by the law each row comes from, and every alternative keeps the column it genuinely wins.

✓ yes~ partial✗ no
FreeWillyDocker DesktopRancher DesktopPodman DesktopWSL2 daemon
Cost & access
Free at any headcount✓✗✓✓✓
Per-user install, no admin prompt✓✗✗~✗
Footprint: nothing resident
No service or VM held from every boot✓✗✗~~
Compatibility
Standard docker_engine pipe, no DOCKER_HOST✓✓✓✗✗
Compose and Buildx installed, pinned by digest✓✓✓~✗
Cross-platform (macOS, Linux)✗✓✓✓✗
For an agent
Read/do split at the argv level✓✗✗✗✗
Breadth: where an alternative leads
Kubernetes built in✗✓✓~✗
Extensions / build cloud✗✓✗✗✗
Rootless, daemonless✗✗✗✓✗
Commercial support✗✓~~✗
Credibility

What each alternative is genuinely better at

Docker Desktop

Kubernetes, an extensions marketplace, a build cloud, and somebody to call. Pick it when you need those, or want a vendor on the hook.

Rancher Desktop

Cross-platform and ships Kubernetes. Pick it on macOS or Linux, or for a Kubernetes dev loop.

Podman Desktop

Daemonless and rootless. Pick it when a rootless, no-daemon model is the requirement.

Plain WSL2 daemon

Free of this project entirely. Pick it if you would rather wire dockerd into WSL2 and manage the pipe yourself.