I'm part of the company that operates nanoo.tv, a Swiss video platform for schools.
Many of our customers desire to embed videos from nanoo.tv into their moodle courses. We support OEmbed, so this works fine for people who have the OEmbed filter installed and whitelisted nanoo.tv. However, some customers are using the Multi-Embed filter, which does not appear to support nanoo.tv yet.
Looking at your information, I'm not sure about the relation of the Multi-Embed filter and OEmbed. Most sites supported by Multi-Embed do not support OEmbed (which appears to be the reason why you created Multi-Embed in the first place), but there is also Multi-Embed support for some (such as YouTube or SoundCloud) that do support OEmbed - but you don't use OEmbed for that, but craft an iframe tag from the pasted link instead.
As some of our customers have expressed desire to have nanoo.tv links "work" in moodle when using the Multi-Embed filter, would you be interested in adding support for it, even though that would mean some kind of redundancy (because it's supported by the OEmbed filter, too)?
If so, we can gladly implement nanoo.tv support in a fork of the Multi-Embed code, and send you a pull request for it.
Kind regards,
Andreas Trottmann