Describe the bug

Pretty much what the title says,

➜  portal git:(main) ✗ docker build -f packages/environments/dev.Dockerfile --output=artifacts-agent-v3-api .
DEPRECATED: The legacy builder is deprecated and will be removed in a future release.
            Install the buildx component to build images with BuildKit:
            https://docs.docker.com/go/buildx/

unknown flag: --output
See 'docker build --help'.

And buildx does not seem to be available

➜  portal git:(main) ✗ docker buildx build
docker: unknown command: docker buildx

Run 'docker --help' for more information

And to add to insult to the injury, the older version download speed is ... bad

To Reproduce

No response

Expected behavior

No response

Diagnostic report (REQUIRED)

OrbStack info:
Version: 1.11.3
Commit: fc21fa7866a51675a381a1612c39e06918559d09 (v1.11.3)

System info:
macOS: 15.5 (24F74)
CPU: arm64, 8 cores
CPU model: Apple M2
Model: Mac14,2
Memory: 24 GiB

Full report: https://orbstack.dev/_admin/diag/orbstack-diagreport_2025-06-25T17-03-09.688028Z.zip

Screenshots and additional context (optional)

No response