Installing a mini-split system yourself in the US offers practical benefits...
https://www.tool-bookmarks.win/installing-a-diy-mini-split-system-in-your-us-home-offers-clear-practical
Installing a mini-split system yourself in the US offers practical benefits that go beyond simple cost savings. First, DIY installation can save you anywhere from $1,500 to $3,000 in labor fees, which can be a significant chunk of the total expense