Connecting 3.5” st7796 trouble

Hi, I’m sick of trying to connect a 3.5 inch display to Raspberry Pi zero 2… I was tryin like in this repo: https://github.com/jobitjoseph/fbcp-ST7796 but errors on every possible steps. Have you guys any tips how to connect it as a main display? It’s a cheap screen from AliExpress, I can find link.