Also, is there a way TailOS can automatically not connect to the Internet or have the offline Electrum app in a VM/Container/Qube to keep it offline?
Enable "
Offline Mode" in the start menu "
Additional Settings" in every session.
However, unplugging to the network is still the recommended solution since some motherboards' UEFI/BIOS can still connect to the internet without the OS.
Still figuring out how to send from the offline wallet with 1 USB, 1 offline computer -snip-, 1 online computer and 1 online iPhone (no Electrum nor Sparrow app).
To better understand what I've written about it:
Research "
PSBT" (
Partially Signed Bitcoin Transaction) and you'll be able to tell if a non-Electrum client can be used together with Electrum.
Take note that some tutorials online are outdated and the export/import transaction method will only work in older versions of Electrum.
In your research, make sure that Electrum's version is at least v4.0.1 or above.