I've always kept a script like this on my computer, but the idea of "optimized" is very subjective, volatile, and prone to change. Also, that was a reason why I

I've always kept a script like this on my computer, but the idea of "optimized" is very subjective, volatile, and prone to change. Also, that was a reason why I ditched libvirt, because once its internal change impacted the performance on my side. There's just no correct answer here. Certainly, however, this can be handy if one needs to quickly spin up something.