CrazyMax

Currently it takes almost 20min to build the bin image: https://github.com/docker/buildx/actions/runs/13401108061/job/37432288863  With this reusable workflow to distribute multi-platform builds it's ~3min 

Putting this one back in draft as using git context makes the buildx version being wrong related to https://github.com/docker/buildx/pull/3155

Thanks I will review this ASAP. For ci issues on macos-15 they are not related, see https://github.com/docker/actions-toolkit/issues/852

CalDav not supported anymore since 3.3.0 related to https://github.com/Masterminds/semver/issues/255 Related issue https://github.com/Masterminds/semver/issues/258 https://github.com/docker/buildx/actions/runs/15017491852/job/42198709827?pr=3185#step:7:13315 ``` === Failed === FAIL: driver/docker TestConstraint/>=_18.06.0-0,_=_18.06.0-0,_=_18.06.0-0,_=_18.06.1-0,_=_18.06.1-0,_=_18.06.1-0,_=_18.09.0-0,_=_18.09.0-0,_=_18.09.0-0,__18.09.1-0,__18.09.1-0,__18.09.1-0,_=_18.09.6-0,_=_18.09.6-0,_=_18.09.6-0,_=_18.09.7-0,_=_18.09.7-0,_=_18.09.7-0,_

> CalDav not supported anymore since 3.3.0 related to [Masterminds/semver#255](https://github.com/Masterminds/semver/issues/255) > Related issue [Masterminds/semver#258](https://github.com/Masterminds/semver/issues/258) Has been restored in latest 3.4.0: https://github.com/Masterminds/semver/pull/266

Some linker issues, we might need to build ld for loong64 first: https://github.com/tonistiigi/xx/actions/runs/12261324304/job/34208092723#step:5:849 ``` #89 29.18 # ld.lld: error: /loongarch64-alpine-linux-musl/usr/lib/gcc/loongarch64-alpine-linux-musl/14.2.0/crtbeginS.o:(.text+0x0): unknown relocation (102) against symbol #89 29.18 # ld.lld: error:...

> Looks like the failure in test-clang.bats is due to using Debian sid. Yes failures are expected on unstable repos like sid and we allow it: https://github.com/tonistiigi/xx/blob/5b413d33ed96e3a80d7bd0b965beaf606803d7f7/.github/workflows/build.yml#L74

Looks good now after rerun if you can take a look @tonistiigi

Seems to be a regression since [Buildx 0.14.0](https://github.com/docker/buildx/releases/tag/v0.14.0), I assume this is https://github.com/docker/buildx/pull/2336, specially this condition: https://github.com/docker/buildx/pull/2336/files#diff-fbe2fa23203f2ff05f06b6c0731ea90529f90906807483db76a79f6018781465R1460-R1464

I think we could link to https://docs.docker.com/build/bake/compose-file/