I went cheap on a channel open tx fee.
Not an issue, I can wait, but it started me thinking.
RBF is enabled on chain, and there is a change output unconfirmed in my wallet.
The question is - how do I perform an RBF transaction via Thunderhub or RTL?
I also thought I’d do CPFP with the change output, but you can’t do that either as RTL will not allow you to spend unconfirmed sats.
Lastly I thought I’d be clever and load the seed into Sparrow to spend the change or do RBF, but alas - checksum invalid as I think Umbrel doesn’t use BIP39?
So, how best to proceed if I were wanting to push the channel opening with urgency?