Astonishing The World is a timeline based on this map and scenario by Nekromans, with the premise of an Austrian intervention in the Crimean War on Russia's side (then again, stranger things have happened IOTL). The TL can be found here.
The title is a play on the famous quote from Austrian Emperor Franz Joseph at the beginning of our Crimean War - “We shall astonish the world with our ingratitude”, referring to the Russian help in 1848, when it looked like Austria would be torn apart by rebellion.
The point of divergence is a rebellion in Lemberg (Lvov) in Austrian Galicia, which is suppressed by Russian troops in exchange for Austrian aid in a war against the Ottoman Empire.
“Free” in the sense that an independent Scotland would be “free”.