Mastodon
Mastodon is a free, open-source social network, written in Ruby. A decentralized alternative to commercial platforms, it avoids the risks of a single company monopolizing your communication. Pick a server that you trust — whichever you choose, you can interact with everyone else. Anyone can run their own Mastodon instance and participate in the social network seamlessly.
Install
Prerequisites
Add new user mastodon
Check build environment and then the Official Install guide and prepare your setup by following: