A treble Oreo build of the Screw'd-mido-4.1.0-UNOFFICIAL was announced by sayan7848 on April 22 2018 on the XDA Developers Forum Thread as well as the Telegram group for Redmi Note 4 (mido). Please check out the changelog here.
The download centre is hosted by Android File Host:-
For my 'test run' I used the unofficial Treble supported Red Wolf Recovery to perform a clean wipe and then installed the downloaded treble build.
After successful installation I am glad to share with you the following short video preview of this treble Screw'd Oreo build for Redmi Note 4 (mido):-