Matrix is an open standard for decentralized real-time communication. The specification is production-ready and bridges to tons of silo products like Slack, Gitter, Telegram, Discord, and even Facebook Messenger. This lets you use Matrix to link together disjoint communities in one place, or create an alternative communication method that works with, but is independent of, communication silos.
You can create your own self-hosted Matrix chat for as little as $3.50 USD… https://victoria.dev/blog/create-a-self-hosted-chat-service-with-your-own-matrix-server/
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