On the transcriptions page to make the static youtube video float so it's always in view when you scroll on the page.
Additionally you can click on the SRT time on transcripts and it will jump to that position in the audio.
The website is built in java and uses elasticsearch.
5 freelancers are bidding on average $131 for this job
I have done the same for many clients of mine in the past and we can deliver it pretty quick. Do you require the same for every video on your website?