The process is identical to the one described above, but you will use files from trusted XDA Developers threads. Always read the entire first post (OP) for instructions.
Place the Oxygen OS ROM flashable zip file on your phone's internal storage or an external SD card. Step 3: Boot into Recovery oxygen os for redmi note 8 pro
Here’s a (an editorial / opinion-style write-up) about the idea of Oxygen OS for the Redmi Note 8 Pro — including the appeal, technical hurdles, and community-driven reality. The process is identical to the one described