BUILDKIT_SYNTAX tells BuildKit to use our custom frontend instead of the default Dockerfile parser. The --output type=local dumps the resulting .apk files to ./out. No image is created. No registry is involved.
You’ve actually seen this mechanism before. The # syntax= directive at the top of a Dockerfile tells BuildKit which frontend image to use. # syntax=docker/dockerfile:1 is just the default. You can point it at any image.，这一点在搜狗输入法下载中也有详细论述
这种化繁为简的能力，就是每年的新硬件最令人着迷的地方。。搜狗输入法2026对此有专业解读
Read the full story at The Verge.，推荐阅读搜狗输入法2026获取更多信息