Create a trousseau store, specify which gpg recipients are allowed to open and modify it, and adding some key-value pairs to, export it to s3 for example, and re-import it on another device. As simple as that.
Whether you're a devops, a paranoid guy living in a bunker, or the random user who seek a simple way to store it's critical data in safe maneer. Trousseau can do something for you.