That is a great use case, but you wouldn't use a signer as a proxy? It already knows everything about you and can decrypt everything. It also sees every event you publish, the escalation is privileges is pretty minimal.
Discussion
I would never use an online signer. No third party should control my keys.
Even if you self-hosted it?
Sure, but then I would self-host in the phone. Never online.
Fair enough. Is there a way to sign events on desktop from your phone?
Not yet. But NIP-46 apps are coming. Alby has a demo here: https://blog.getalby.com/nostr-signer/
Adding nip 46 to amber too.
it could be done with wireguard, reverse proxy and nip-46
i only haven't started running a NIP-46 bunker because i just use alby and i'm not hardly using my phone
wireguard with reverse proxy and NIP-46
i'm glad others get it too... no, it's in someone else's hands, far from where i am able to hit the hard power switch and have the memory forget it
even if it was stored in encrypted memory, still too far from me, never heard of a storage medium that can't be attacked with a big jar of liquid nitrogen