Isn't it linked to your lnd node? So the seed would be on your lnd wallet. 

 Maybe. I'll check. 

 Yeah. That's it. Thank you. I had no idea. 

 I can use this for LNBits now without the API. This is so cool. 

 If it’s running on your Umbrel/Start9, the seed will be in LND.

If it’s in Alby Cloud, it’ll be here: https://guides.getalby.com/user-guide/v/alby-account-and-browser-extension/alby-hub/faq-alby-hub/how-can-i-backup-my-keys 

 Thanks. Now it makes more sense.