Supermemory open-sources Company Brain, its discontinued Slack agent, to run on your own Cloudflare account

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Released 25 Sep under Apache 2.0 (289 stars in its first day), the repo is the full product that was once paid and had thousands of users. It is a Slack teammate that builds memory from channel conversations, acts in GitHub, Linear, Notion and Google Workspace over MCP, runs code in its own sandbox, and posts scheduled digests. Memory is a permissions graph that reads only with the asker's own access, and it deploys to Cloudflare Workers with one button. It gives teams a production-tested reference for permission-scoped team memory, which most internal-agent projects get wrong.