After three years of development, the first stable release is presented pleroma version 0.9.9 β a federated social network for microblogging written in the Elixir language and using the standardized W3C protocol Activity Pub. It is the second largest network in Fediverse..
Unlike its closest competitor, Mastodon, which is written in Ruby and relies on a large number of resource-intensive components, Pleroma is a high-performance server that can run on low-powered systems such as Raspberry Pi or cheap VPS.
Pleroma also implements the Mastodon API, allowing it to be compatible with alternative Mastodon clients such as tusky or fedilab. What's more, a fork of the source code for the Mastodon interface is shipped with Pleroma, making it smoother for users to transition from Mastodon or Twitter to the TweetDeck interface. It is usually available at a URL like https://instancename.ltd/web.
Other things to note:
- using ActivityPub for internal work (Mastodon uses its own variation);
- arbitrary limit on the number of characters in the message (default 5000);
- markup support using Markdown or HTML tags;
- adding your own emoji from the server side;
- flexible interface settings that allow you to arbitrarily change its elements from the user side;
- filtering messages in the feed by keywords;
- automatic operations on uploaded images using ImageMagiΡk (for example, removing EXIF ββinformation);
- preview links in messages;
- captcha support with Kocaptcha;
- push notifications;
- pinned messages (so far only in the Mastodon interface);
- support for proxying and caching of statuses with attachments from external servers (by default, clients access attachments directly);
- many other highly customizable options that can be applied to the server.
Interesting experimental features include Gopher protocol support.
Source: linux.org.ru