How to recover a deterministic wallet offline?

[Bitcoin]

How to recover a deterministic wallet offline?

I know that in the case of electrum there is a gap limit and it will keep generating addresses until it finds a number of consecutive empty addresses equal to the gap limit.

What about if I want to recover my wallet using my seed offline, suppose that electrum servers are not working and I want to recover my wallet. How can electrum know when to stop generating addresses noting that it has no access to the blockchain since the servers are down.

Source: How to recover a deterministic wallet offline?