Hey ,
i am also trying to setup the video player as you said in this post.
the thing is i can easily attach the video file using “paperclip icon” ,
the video opens perfectly when i click the answer card , the problem is , it covers all my screen (almost in fullscreen window size).
i tried following your steps but i dont really understand the ‘coding’ part.
and you made some additional changes too (i am fine with the .mp4 file format ) i dont have anyother problems so i dont know which changes to copy from your post.
Please help me if you can. (i also posted this on fourm Video player window size problem (mpv player) )