I am not going anywhere at the moment, yes. However, I have also not been able to go on trips before the current pandemic happened due to being too busy with work. Anyways, I just uploaded the extension to the Chrome Web Store and it is currently under review (I uploaded it as "Watchmarker for Youtube" to avoid any conflicts). This reviewing process may apparently take several weeks though, so stay tuned.

:: Simon

Update: https://chrome.google.com/webstore/detail/watchmarker-for-youtube/pfkkfbfdhomeagojoahjmkojeeepcolc