Nostr Reviews on Nostr: I believe you technically can, but it won't be as clean and easy as using a wallet ...

I believe you technically can, but it won't be as clean and easy as using a wallet that has Nostr Wallet Connect, such as an Alby (npub1get…0nfm) Hub wallet, or coinoswallet (npub1h2q…w8ch).

From what I understand, fountain_app (npub1v5u…n0v5) intends to add NWC, so you will be able to use your own wallet with their app. Not sure if they are planning to add it so you can connect their wallet with Nostr apps like #Amethyst, though. I am sure merryoscar (npub1unm…d0j2) could provide insight.