How to install Realme ui 3.0 Betta version | Simplest way

In this video I have explained how to install realme UI 3.0 beta on realme devices and for this video I have my own Realme GT neo 2.
Link for roadmap
www.realme.com...
www.rmupdate.c...
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[@zbieramsubowbezfilmowxd-kb3pv]

I do not have such an option in the settings

[@ROOTCHECK]

Then it's not available to u just keep on trying for the open trial version option