Thank you for your reply. Still learning; will try linking to a different url for profile pics.
Again not a tech pro, but my humble thought might be a dedicated key manager (like bitwarden) that can link to any nostr client and manage both keys for them upon key generation. Of course there are bound to be security/privacy implications I couldn't anticipate (can it be decentralized), and I'm sure someone must have thought this before.
Any case, very inspired by the folks doing this!