Hi Stackers

I’m new to the multisig thing and wanted to share my experience about using it for a potential self custody solution.

I’ve been playing around with setting up a 2of3 multisig wallet using Electrum, and honestly, it’s been a very rewarding learning experience.

Even if I don't go down this route, the stuff I've been doing as a normie has surprised me massively!Even if I don't go down this route, the stuff I've been doing as a normie has surprised me massively!

getting electrum onto a chromebook

this was v.tricky because as you'll know, linux is sandboxxed away from the Googleness

verifying a pgp signature

this was interesting

I know this topic has been discussed a ton over the years (I’ve definitely used the search function and read a lot of the old posts)I know this topic has been discussed a ton over the years (I’ve definitely used the search function and read a lot of the old posts)

And I know there's been a lot of chat recently about how dangerous multisig can be, but I wanted to add my beginner perspective.And I know there's been a lot of chat recently about how dangerous multisig can be, but I wanted to add my beginner perspective.

Currently, I’m experimenting with a setup that uses one hot phone and two cold phones.

It actually took me ages to internalize the conceptualization of how the setup works, and I can definitely see why so many people mess up and lose everything

My main question is:My main question is:

Is this secure enough for long-term storage?

I understand the risks of the hot device being online, but having two offline (cold) signers makes me feel better about the overall security

As I've said, I'm no computer scientist, but I'm sort of aware of the servers on electrum leaking information, but to be honest, that level of knowledge is something I can learn to understand

At the moment I'm still in the testing stage and so far I have:At the moment I'm still in the testing stage and so far I have:

setup the multisig

wiped the phones

re-setup

recieved a small amount

sent a small amount

I did this by:I did this by:

using the hot phone to create tx

using cold phone to sign by qr code

using hot phone to broadcast

So my question would be:So my question would be:

when the cold phones need an app update, how do you safely update the Electrum app without connecting them to the internet?

I want to keep them air-gapped but also up to date.

I'm thinking....I'm thinking....

delete wallet uninstall when cold

reinstall and update when hot

go cold and import seed

Maybe that's too simplistic, but I didn't want this to be just another multisig post

I want you to know, I really enjoyed learning all this