Does my node have to be connected to the network to do POW?
I'm thinking about an app that connects to a local node to process
attachToTangle, but send all other requests (including
broadcastTransactions to a remote node).
In essence, the app is capable of operating in "offline" mode, enabling a user to create valid transfers and store them locally until a networked node is available to broadcast them.
Does that approach make sense, or does my local node have to have full neighbors/database to do POW?