Drive selections
Clients pick from your Drive folder. You review on a private board.
You (the photographer) sign in once and paste a Drive folder link per job. Your client gets a simple link — no Google login on their side — browses that folder, and their picks show up for you on a separate photographer link.
I'm the photographer
Sign in with Google (your Drive), create a job with a folder link, then share the client pick link.
I'm selecting photos
Use the pick link your photographer sends you (looks like /pick/…). No Google sign-in required.