Second Brain remembers your projects, people, decisions, and preferences across Claude, ChatGPT, Cursor, Codex, and any MCP client. V2 automatically links related memories, follows those connections during recall, and distinguishes settled decisions from drafts and stale context. Open source and self-hosted in your Cloudflare account.
Think about how you work today. You use Claude for writing. ChatGPT for research. Cursor for code. Maybe Codex for longer tasks.
Each one learns something about you. Your preferences. Your projects. Your decisions. But none of them talk to each other.
So you end up repeating yourself. Re-explaining context. Correcting assumptions that one tool got right weeks ago in a different conversation.
It is like having five assistants who each only remember the conversations they were personally in. They are all smart individually, but collectively they are forgetful.
We just shipped Second Brain 3.4.0, and since the last Product Hunt update was 3.0, I wanted to share what has changed.
The biggest addition in 3.4 is Projects.
If you use AI across different products, clients, codebases, or areas of your life, one giant pool of memory can get messy fast. Projects let you keep related memories together, so your AI can pull from the right context without you having to explain everything again.
Remember when @pooja_phillips asked if there was a no-code way to get Second Brain running? Or when others mentioned being uncomfortable with git and the terminal?
The Second Brain desktop app gets you running in five minutes. No terminal. No git. Just download, set a password, and sign into Cloudflare. Then the real magic starts. Persistent memory across every AI tool you use.
Recall that just got a lot smarter. Surfaces the right memory, not just the newest one. A knowledge graph that builds itself. Your data in your own Cloudflare account, not ours. Mac and Windows. You asked for the app. You asked for better recall. We shipped both.