How to Install MacOS Monterey 12 on an Unsupported Mac, MacBook, iMac or Mac Mini in 2022 - YouTube
MacOs Monterey on unsupported MacBook Pro 13 inch mid 2012 - YouTube
It's old as heck but still kicking! Mid 2009 MacBook Pro (MacBook Pro 5,5) I'm hoping to use opencore legacy patcher to install Monterey on it. : r/ macbookpro