Sai That sounds good. Hope it will be bundled into core product in future.
Digital Auto embed is already bundled with Flarum.
While MediaEmbed is easily accessible to install (a single composer command) and at some point will be easier (likely entirely within web-gui), I do not believe it's bundled with the core install of flarum.
Currently, these are the default bundled extensions
flarum/core v0.1.0-beta.5 Delightfully simple forum software.
flarum/flarum-ext-akismet v0.1.0-beta.5 Stop spam using the Akismet anti-spam service.
flarum/flarum-ext-approval v0.1.0-beta.5 Make discussions and posts require moderator approval.
flarum/flarum-ext-auth-facebook v0.1.0-beta.5 Allow users to log in with Facebook.
flarum/flarum-ext-auth-github v0.1.0-beta.5 Allow users to log in with GitHub.
flarum/flarum-ext-auth-twitter v0.1.0-beta.5 Allow users to log in with Twitter.
flarum/flarum-ext-bbcode v0.1.0-beta.5 Allow posts to be formatted with BBCode.
flarum/flarum-ext-emoji v0.1.0-beta.5 Convert text and unicode emoji into Twemoji.
flarum/flarum-ext-english v0.1.0-beta.5 English language pack.
flarum/flarum-ext-flags v0.1.0-beta.5 Allow users to flag posts for moderator review.
flarum/flarum-ext-likes v0.1.0-beta.5 Allow users to like posts.
flarum/flarum-ext-lock v0.1.0-beta.5 End a discussion and don't let anyone add further replies.
flarum/flarum-ext-markdown v0.1.0-beta.5 Allow posts to be formatted with Markdown.
flarum/flarum-ext-mentions v0.1.0-beta.5 Mention and reply to specific posts and users.
flarum/flarum-ext-pusher v0.1.0-beta.5 See new discussions and posts in real-time using Pusher.
flarum/flarum-ext-sticky v0.1.0-beta.5 Pin discussions to the top of the list.
flarum/flarum-ext-subscriptions v0.1.0-beta.5 Allow users to follow discussions and receive notifications for new ...
flarum/flarum-ext-suspend v0.1.0-beta.5 Suspend users so they can't post.
flarum/flarum-ext-tags v0.1.0-beta.5 Organize discussions into a hierarchy of tags and categories.