I’ve done 2/3 with:
  • a coldcard, a ledger, and a trezor
  • three coldcards
  • a coldcard, a tapsigner, and a phone key (in nunchuck)
  • a software key in blue wallet, a custom signing server running on AWS I wrote, a software signer in sparrow
  • software signer in sparrow, signer in an airgapped computer running core, signer in specter
  • many more weird configurations!
What are you looking for with a private server? Are you looking to have some service provider manage a key for you? If you are comfortable managing all the keys, you don’t need a third party server.
Thanks, man. This is very helpful.
Mostly trying to find the right balance between privacy and security for the right denomination.
In your experience, any best practice BTC/sats range per top configurations?
I'm comfortable managing all the keys, but also keen to try out different tools out there and learn from others incl. third-party servers :)
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