iCloud Drive on an External Drive?

[dfay]

I gave up based on comments and articles linked here:

Moving icloud files to external or second drive

I have dropbox symlinked to a secondary HD in my iMac,to avoid using up space on my SSD. This has worked flawlessly for years. Has anyone tried doing the same with icloud? I worry the tighter OS integration and renaming of file names might break something… Never mind: