https://community.umbrel.com/t/how-to-restore-your-node-wallet-updated/3602

Using Sparrow wallet method, only for onchain funds

This method will NOT restore your LN channels, only the onchain wallet! To restore funds from LN channels you still need to do the “normal procedure” explained in the point 1 in this guide.

Install Sparrow desktop wallet

Go to Cryptography Toolkit and download the HTML file onto your computer.

Open that HTML file in “offline mode” (no internet) and select “aezeed Cipher Seed Scheme” from Tools. Then go to the 2nd tab “Decode Mnemonic”.

Paste your 24 words into the “Mnemonic” field.