How to fetch for all versions + architectures?

Instructions in https://github.com/ziglang/zig/pull/14185 were to add missing files here and submit a PR. Are there any tips for how to populate the six separate version+architecture variants? When I run `fetch` on my M1 mac, it just `aarch-macos.12-none`. Do I just copy the changes to the other directories, or do I need to run on all six combinations somehow?