SuperBrain

This is exactly the kind of tool privacy nerds have been waiting for - SuperBrain lets you self-host your entire second brain on Android so you actually own your data instead of some startup ghosting you in 18 months. The AI routing between Groq, Gemini, and local Ollama models is smart because you can pick your own tradeoff between speed and capability, and the fact that it pulls summaries, tags, AND identifies background music from your saved reels hits a specific pain point that nobody's solving this cleanly. It's totally free with no subscription in sight, which is rare enough to call out. One real limitation though: Android-only means iOS users are locked out, and the 68 upvotes on Product Hunt suggest it's still early days - give it six months and this could be a dark horse in the personal knowledge management space if the Android audience gets behind it.