Not really. Amber uses NIP-46 to sign and decrypt payloads from your phone. Desktops never see the nsec, only people's phones do. Everytime an approval is required, Amber brings up a popup on the phone. 

That can come from your team members or from yourself on a separate device. 

 > Everytime an approval is required, Amber brings up a popup on the phone.

That seems like a relatively high level of friction, and friction is a big killer of adoption.