Installing a mini split system yourself in the US offers substantial...

https://smoothdecorator.com/why-diy-savvy-homeowners-struggle-with-climate-control-projects-and-how-to-overcome-the-hard-parts/

Installing a mini split system yourself in the US offers substantial benefits—if you approach it with the right preparation. Unlike traditional HVAC setups, mini splits don’t require ductwork, significantly reducing complexity and renovation costs