I learned to embed Odysee video a few months ago, but that only works for Peakd users. Hive.blog blanks posts with video embedded from other platforms than X and Tubeyou, or at least blanked out my posts with embedded Odysee video, and BT pointed out the problem was Hive.blog. Ecency and other front ends may not have that problem, but after the confusion about what had happened was resolved, I stick to linking to Odysee rather than embedding. Asgarth and Jarvie at Peakd explained that Peakd can embed video from platforms that provide a 'share' link button (I dunno about Rumble, Substack, Bitchute and others, as I haven't tried to embed video from those sites), but Hive.blog either isn't capable of fixing the problem after months of Github requests, or prefer not to, for whatever reason.
Not being competent to code 'Hello World' to output, I sure can't cogently comment or resolve the problem myself.
RE: Video won't play (removed)