Lots of UI work on Signet, my NIP-46 remote signer, including a mobile optimized version. Since this is meant to be run locally, you'll have to run a Wireguard or Tailscale tunnel to access the admin UI.
I am considering adding some additional security options down the line so this could be run from a VPS, but not sure that's a direction I want to tackle right now. Repo already exists on Github but that version is a couple of months old so not recommended for use yet. This new updated version should be out sometime this week so I'll post when it's released.
