bit on Nostr: Does someone out there know if Primal supports the ability to use a separate signing ...

Does someone out there know if Primal supports the ability to use a separate signing program for actually writing notes? (I know it supports payment like zaps)

I want Primal to be able to communicate with BitDNS to be able to add cryptographically unique, censorship-resistant human readable names to Nostr but to gain real traction with such a standard our largest client would need to be able to support this functionality