what with the whole ongoing reddit apocalypse i’d like to mention that i quickly copy-pasted a basic media embedding plugin for several lemmy instances - https://gitlab.tt-rss.org/tt-rss/plugins/ttrss-af-lemmy.
it also makes subscribing to ‘sublemmies’ easier through tt-rss UI (don’t need to hunt for the microscopic rss icon).
it’s on the plugin installer.