arm64
Can I build arm64 images on an x64 runner?
Quick answer
Yes, with QEMU — but it is 5–40× slower than building natively.
The detail that matters
Use a native arm64 runner for the arm64 matrix leg and merge the digests into a manifest list.
Your next build could be twice as fast, at half the price
Start free. Migrating away is the same one line, and we publish that diff too.
Related
Can GitHub Actions run arm64?Yes. GitHub offers arm64 runners on paid plans, and managed providers including runnerhut offer them on all plans.What changes when moving from x64 to arm64?Native modules, Python wheels, and any x86 assembly need aarch64 support. Most mainstream dependencies now have it.Can I run arm64 and x64 jobs in the same workflow?Yes. Use a matrix with a different runner label per architecture.Do arm64 runners support buildx?Yes, and on native arm64 hardware buildx produces arm64 images with no emulation.