Russia retreats to pre-2014 borders

All war criminals prosecuted

"Guarantee this will never happen again"

"Respect the UN"

That's what I remember but there might be a couple more

IMO peace talks aren't really possible because both Ukraine and Russia's demands are unrealistic.

Russia wants to annex territory they don't even control and some other dumb stuff like Ukraine never joining NATO or the EU, while Ukraine wants Russia to willingly let them prosecute war criminals which would never happen, give up territory they controlled pre-war, which for Putin would be political suicide.