Lemmy maintainer. Interested in politics, video games, and many other things.
This is not the right way to develop themes, you should use the preconfigured themes folder.
Your first link is an embed, thats not right. The second looks fine, it should work. Paste it and i can see whats wrong. Third link is in another format, so thats maybe why it doesnt work. Below is the link which worked for me:
https://peertube.stream/videos/watch/29c08742-2a3b-4718-8a9c-7448c51bd741
You can find documentation about Lemmy’s federation at the links below. The json is auto-generated from source code and should always be up to date, but the text might be outdated. If anything is unclear, let me know.
https://join-lemmy.org/docs/en/federation/overview.html
https://join-lemmy.org/docs/en/federation/lemmy_protocol.html
Did you paste the video url into Lemmy search? Because that works just fine.
Did you follow the documentation for theming?
I think this makes a lot of sense for the local and federated feeds. In fact i opened a very similar issue recently, but only regarding posts from communities. It should be pretty easy to implement the same logic for users as well.
Subscribing to hashtags doesnt really make sense. Activitypub groups (which Lemmy uses for communities) work by following an actor, and it then sends all new items to the follower. On the contrary, hashtags are displayed simply by taking all locally known posts which contain that hashtag. There is no way to follow anyone to get all new items for that hashtag, and no way to have moderators or a description for the hashtag, like we have for communities. Its just a very simple and primitive implementation that doesnt work with the data structures that Lemmy uses.
You are right, this is a problem in Lemmy. Just fixed it.
I havent noticed such an error in a long time. Can you give more details, like any errors from browser console?