In #0xchat v1.2.2, NIP-07 is supported, which means you can open the Nostr app in 0xchat and then authorize a login or signature.

BTW, wherostr.social looks great https://video.nostr.build/7cc158a5d3bfa578f54ae124c6dc5cbc22334cdf65b07d007516faf53ef31fca.mp4