Have you tried Sparrow?
Used my COLDCARD from nostr:npub1wu4aye7ll0lnrrg638e90sehzsgpzx5t39t3mwl05aa0d0ap08esdz3vw0 today to sign a Partially Signed Bitcoin Transaction generated from Specter.
Build the transaction, save the PSBT to a MicroSD card on my desktop, plug that card into my COLDCARD, sign the transaction, plug that card back into my desktop and copy the transaction data to Specter, and then hit "Send".
My private keys never hit a live internet connection.
This always amazes me and takes less time than depositing a check at a branch bank.
Discussion
I have it but havenât really used it yet.
I tried Specter Desktop briefly, but prefer Sparrow, mainly because of Electrum server support.
If you only every use either with brand new wallets, then I suspect theyâre similarly fast. The difference is when youâre recovering.
I havenât kept up with Specter development, but when I tried it, it connected directly to your Bitcoin core node. It didnât support connecting to Electrum server. So that meant that recovering a wallet meant having to scan the block chain, which could take several minutes or longer, depending on the CPU and hard disk speed of the Bitcoin node.
If you use Sparrow with an Electrum server backend, recovery is significantly faster because it uses the Electrum serverâs index rather than scanning the Bitcoin core historical data block-by-block.
Now, if Specter has implemented Electrum server connection support, my point is moot. But in any case, recovery speed was a big part of my reason for picking Sparrow.
