I would like to have the following setup:

  1. Bitcoin Core on an offline laptop. Here the private keys are stored. Full disk encryption.
  2. Bitcoin Core on an online laptop. Here watch-only addresses from the private keys in the offline laptop are imported to monitor funds without exposing the private keys online. The blockchain is fully synced. Also full disk encryption.

I have already downloaded the entire blockchain and it’s synced on one laptop. Now im wondering how can I use the other laptop as a hardware wallet and broadcast transactions in the online node. As far as I know even if there isn’t proper support for this like Electrum for some reason, it is doable. I reckon reading something about this and it was done with QR codes or something. I also would like to make this through the GUI to minimize screwing up in the process.

Any ideas? Thanks.

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