Like nostr:nprofile1qqspdudqzqx5ellme3prp68qus5se3vynsddcexkv5la5p7qxxcswjcprdmhxue69uhhw6r9v96zu6rpwpc8jarpwejhym3wvdhj7qgnwaehxw309ahkvenrdpskjm3wwp6kytcpzdmhxue69uhhqatjwpkx2urpvuhx2ue07vehxa said Pokey is your tool.

Best to start installing Amber for key-management from fdroid.

Then get Obtanium and install Pokey from GitHub