There's code for this merged in https://gerrit.wikimedia.org/r/#/c/312327/ but it needs some work before we can release it.
- https://www.mediawiki.org/wiki/Beta_Features/Package work:
- Re-word name (current value is "Video.js" which isn't helpful).
- Re-word description (current value is "Updated audio/video player with cleaner look and mobile compatibility." which isn't good enough).
- Re-do screenshot (current one is https://gerrit.wikimedia.org/r/#/c/312327/39/resources/BetaFeature_TMH_VIDEOJS.svg not in keeping with the rest of the set).
- Create a description page for the beta feature on MW.org.
- Create a discussion Flow page for the beta feature on MW.org.
- Add a compat block for JS (at least).
- Enable the BF in Beta Cluster
- Make sure everyone's happy (Product&Design review. Security review. Performance review.)
- Test a fair bit.
- Announce. https://meta.wikimedia.org/w/index.php?diff=19150283&oldid=19149631&title=Tech/News/2019/25
- Release. https://gerrit.wikimedia.org/r/c/operations/mediawiki-config/+/354390