Contribute some resources, articles or links on this topic. Create your own sub-topics as you need.

• Contribute links or articles to this topic

• Contribute some manuals or “how-tos” regarding decentralisation.

Secure instant messaging is a specialized form of instant messaging that along with other differences, encrypts and decrypts the contents of the messages such that only the actual users can understand them.

• Riot - Riot is a secure collaboration app for group chat, file transfer and voice/video conferencing built on the decentralized Matrix ecosystem, providing bridges and integrations to centralized services such as IRC, Slack, Gitter, etc

A mesh network is a decentralized peer-to-peer network, with user-controlled physical links that are usually wireless, where each node must not only capture and disseminate its own data, but also serve as a relay for other nodes, that is, it must collaborate to propagate the data in the network.

• Cjdns - Cjdns implements an encrypted IPv6 network using public-key cryptography for address allocation and a distributed hash table for routing. This provides near-zero-configuration networking, and prevents many of the security and scalability issues that plague existing networks. Instead of letting other computers connect to you through a shared IP address which anyone can use, cjdns only lets computers talk to one other after they have verified each other cryptographically.
• tinc - tinc is a Virtual Private Network (VPN) daemon that uses tunnelling and encryption to create a secure private network between hosts on the Internet. Because the VPN appears to the IP level network code as a normal network device, there is no need to adapt any existing software. This allows VPN sites to share information with each other over the Internet without exposing any information to others.

• Contribute some manuals or “how-tos” regarding mesh networks.

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

• Debian
• Fedora
• LineageOS