Hello HN, I’m the maker of Radius.today. I built this because I was frustrated with existing CRMs. They are either too heavy (enterprise SaaS), require a monthly subscription for simple features, or force me to store my friends' and colleagues' private data on a third-party server. Radius is a "Local-first" Personal CRM that runs entirely in your browser. The Promise: 0% Cloud Storage: I don't have a database. Your data lives in your browser's IndexedDB. No Sign-up Required: You can start using it instantly. No "Create Account" friction. Data Sovereignty: You can export your data to JSON/CSV at any time. If radius.today disappears tomorrow, you still have your data. The Tech Stack: Frontend: Built with [React / Vue / Svelte / Next.js?]. Storage: Uses [Dexie.js / RxDB / PouchDB / SQLite WASM?] wrapper around IndexedDB for persistence. Hosting: Static files hosted on [Vercel / Netlify / Cloudflare Pages?]. Offline: Fully PWA compliant (works offline once loaded). Current Status (MVP): It is currently a lightweight MVP. My goal was to minimize friction: open the URL and start logging interactions immediately. Why I need your help: Since I don't track user data, I have no idea how people are actually using it (or if it breaks). I'd love for you to try the "Demo Mode" (no login needed) and roast my code/UX. Is the "browser-only" approach a dealbreaker for you without multi-device sync, or is the privacy trade-off worth it? Happy to answer any questions about the implementation!