AIR-GAP WITH HARDWARE WALLET
This setup works wonderfully for a coldstorage.
Keep only your watch-only wallet in the persistent and use Wasabi (easier) or Bitcoin Core (harder) to build and broadcast PSBT (partially signed Bitcoin transaction).
https://github.com/bitcoin/bitcoin/blob/master/doc/psbt.md
https://github.com/Coldcard/firmware/blob/master/docs/bitcoin-core-usage.md
https://coldcardwallet.com/docs/quick
https://www.youtube.com/watch?v=aU8ysH9JH9M
LEVERAGE THE BEAUTY OF TAILS
The “fire and forget” nature of Tails is incredibily powerful for Bitcoin operation.
You can, for example, keep a tool like Ian Coleman’s html on your persistent storage.
Drop it into the desktop of Tails and generate addresses, check your seed + passphrases, export single private keys, exc…
Shutdown the computer at the end and no trace will remain. If you want to be extra careful, do it in a offline session and without unlocking the persistent storage.
You can also manage privacy-hungry wallets.
Maybe you have 24 words on paper and a passphrase in your mind, and this wallet is extremely sensible and need to leave no trace.
Use it in a Tails session and shutdown at the end.
TAKE ADVANTAGE OF YOUR FULL NODE
Bitcoin Core offers many features and most of them work also in pruned mode.
LINUX ADVANCED USERS
Should be possible, using command line, to set custom Wasabi directory.
WalletWasabi/WalletWasabi#1368
OFFLINE SETUP
Using Tails + persistent storage completely offline can be useful to create your personal "hardware wallet", you can use it as part of a multisig for example.
That's all folks.
Stay safe out there.
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