I built StackMind — a second brain specifically for developers. Why I built it: I was using Notion for notes, GitHub Gists for snippets, and Linear for bugs. Switching between 3 tools constantly was killing my flow. So I built one place that does all of it. Still in active development — bugs are expected and feedback is gold right now. Would love brutal honest feedback from fellow devs. What's missing? What's broken? What would make you actually use this daily?