I made a lightning talk at work about the Fediverse, the content of which is below.

The Fediverse
The “Fediverse” is a collection of sites (or “instances”) that communicate with each other using a common protocol (called “ActivityPub“), so you can send messages from one site to another, even if they are running different software.
You can think of it a little like email: people from different instances running different software can talk to each other, using the same protocol. Kind of like you can email someone at gmail.com from outlook.com.
Usernames look like: @nirak@lincolnite.net. @nirak is my username, @lincolnite.net is the instance. It’s nice not competing with millions of people for a user handle.
Fediverse Software
Any software that can output ActivityPub compliant feeds can be “fediverse software” and many content management systems like WordPress and Drupal have added ways to publish content to the Fediverse via ActivityPub. But there’s also software that lets you maintain a whole social network focused on different things. A few notable examples:
- Pixelfed is like instagram
- Peertube is like youtube
- Lemmy is like reddit
- Misskey and Pleroma are for microblogging
- Friendica is like Facebook
Finally, the software I am most familiar with, Mastodon, is another microblogging platform similar to Twitter (RIP) or Bluesky.
Fediverse Instances
In order to “join the Fediverse” you sign up at one or more instances, and from there you can talk to people on other instances*. Since anyone** can create an instance, there are a ton of specialty sites for different purposes. The sites I mention below are local, academic, and library centered, but you can find more at fedidb.com/servers or search for “mastodon instance directory” or “fediverse instance directory”.
- lincolnite.net – the instance I created for folks from Lincoln, Nebraska
- carhenge.club – for people from Nebraska or people who love Carhenge
- digipres.club – all things Digital Preservation
- glammr.us – for those in “GLAM” – Galleries, Libraries, Archives, and Museums
- code4lib.social – for people who write code in libraries
- archaeo.social – for Archeologists
- hcommons.social – for academic humanists
- mastodon.social – the big flagship general purpose instance. Can be good for finding people
Sorry if I missed your favorite, there are way too many to list every one!
Instances can be closed or open. Many smaller instances are closed by default, which just means that registrations must be manually reviewed. On lincolnite.net, for instance, which I run, I say “Sign-ups on lincolnite.net go through manual review by our moderators. To help us process your registration, write a bit about yourself and why you want an account on lincolnite.net.” Many moderators do this so sites are not inundated with spam bots. Some of the bigger instances like mastodon.social have open signups, and more of a spam problem.
Other sites can interoperate with Mastodon/Fediverse instances. Threads has added an option for users to be able to federate with the fediverse, Tumblr is promising interoperability, and you can talk to people on Bluesky by using an intermediary piece of software called a “bridge.”
On Mastodon, you can migrate your account, along with people you follow and followers (i.e. your social graph) to another instance, but you can’t port your posts. Other software may vary.
* Though the instances can also block each other, severing connections. This may happen due to spam or abusive users.
** Though technical ability is required to install the software to create an instance, you can also pay for an all in one host that takes care of it all, which is what I currently do.
Fediverse Celebrities
Celebrities join mastodon sometimes, but few stay. Whether this is an advantage or disadvantage is a matter of opinion. George Takei is one of the few actual celebrities I still see interact on Mastodon. Locally, RustyWX, the channel 8 weather guy is on Lincolnite.net. I have also included Lisa Melton, who boosts a great deal of posts from a wide variety of users, so she is a great person to follow.
Besides following people, users can follow hashtags. So if you follow, for instance, #dogs, you will see all the posts your instance sees (more on that at mastodon.help) that contain the hashtag #dogs. This can be useful, especially in the beginning when you aren’t following many people. Unlike most other social networks, Mastodon won’t push random people into your feed, so initially it can be a bit sparse.
Fediverse Memes
Like any internet subculture, the Fediverse and Mastodon have their own memes and in jokes. Like any good social network, much of the discourse is about how much room for improvement there is in the software and the culture. So memes like “This is fine!” are common. Mastodon/the Fediverse is very techy heavy, so Linux is popular. We also have a good deal of blind users, and there is a culture of trying to be accessible, so don’t be surprised if you are gently reminded you forgot alt text on your images. We have exactly one spammer we all share, “Nicole the Fediverse chick.” (joke, it’s just a common spam tactic, not the only one). We have imagined origin stories involving John and Joan Mastodon (originating from an article that mistakenly named the creator of the Mastodon software as “John Mastodon”). Finally, there’s a lot of commentary about how weird everyone is, which is a plus or minus depending on your love of weirdness (definitely a plus for me).
Where to find me
I started a mastodon instance called Lincolnite.net, and you can find me there at @nirak@lincolnite.net. If you are from Lincoln, Nebraska, please do ask to join and I will approve ASAP.
I am also on carhenge.club, started by my friend John Skiles Skinner, for all things Nebraska related. I am @nirak@carhenge.club there.
Finally, for library/work related things, I am on hcommons.social. Run out of Michigan State University along with the Knowledge Commons, this instance provides humanities scholars with a place to connect. I am at (you can probably guess) @nirak@hcommons.social.


