Our great sponsors
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Moby
The Moby Project - a collaborative project for the container ecosystem to assemble container-based systems
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
Technically, nothing stops you from building containers without running Docker's Linux VM. After all it's just a file as any other with a known format. I'm not sure though if it's worth the trouble. There are tools for building images other than Docker but I never used any of those and don't know if they are standalone or are wrappers around Docker. buildah is one of them.
buildah requires a Linux kernel. Could not find any tool, cli or otherwise, for macOS to generate the file format. By the way I wonder what the fate of OCI was.