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As promised yesterday, here's a walkthrough on using Qubes OS disposable VMs, opensc, hybrid encryption, and USB security tokens (Librem Key) on my Librem 14 to create redundant hardware tokens from the encrypted backup of my GPG keyring:
https://ajmartinez.com/tech/posts/202121-002-gpg
None of this is groundbreaking, but these steps do not seem to exist in any one document that I could find so I wrote one.
Updated to fix a mistake in my steps: I did not include the cipher used (chacha20) to encrypt/decrypt and while that won't error out in OpenSSL it will result in you not actually encrypting/decrypting data.