There are gas reserves in Germany that would last for months (I've seen 6-9month figures). Maybe cut gas purchase rate to 50%. That would give >1 year of runway.
Gas reserves wont last that much because human hoards if they know government are starting to use reserves. And, when politician act, they should think about future too. And, can they purchase gas at 50%? Are those written in deals?
https://www.mdr.de/nachrichten/deutschland/politik/erdgas-ru...