Posts are straightforward to embed (Mastodon's API supports oEmbed, and it has an embed code option on the default web UI), timelines need a bit more work.

There is no built-in support for embedding a timeline directly from Mastodon, so some work with the API is required. Good opportunity to learn the API, and to build something new! 🛠️

One additional useful thing to know is that Mastodon timelines also have RSS feeds as standard: [instance]/users/[username].rss - for the sake of example, mine is https://macaw.social/users/andypiper.rss - this means that you can plug this in to any widget that styles an RSS feed on a site, for example (although it might not look quite the same as a "proper" timeline on a Mastodon page), or, you can build a component to use the data from there and style it as you prefer. Handy info!
 

The Pixelfed API is similar to Mastodon v1; it does not offer an oEmbed endpoint (that I have found).

• A single post using the default embed option from Pixelfed - example

Pixelfed has Atom feeds for user timelines (not RSS) - they are at [instance]/users/[username].atom

I've included a Fediverse sharing button on some of the pages.
 

Learn more and read the code that does this by boopsing on the fishies below! ⤵️ or, look at the GitHub project (the same code, but needs to be deployed to a web server).
 

If you want to say hello 👋🏻 I live in the #Fediverse at:

• 📝 @andypiper@macaw.social
• 🖼️ @andypiper@pixelfed.social
• 📽️ @andypiper@diode.zone