A developer built Twitter Viewer to bypass the platform's mandatory login, allowing users to view public profiles and search tweets without an account. The tool uses Next.js 14, Vercel Edge, and Redis for speed and SEO, solving a common frustration for researchers and journalists.

The biggest hurdle was Twitter's strict rate limits of 500 guest API requests per hour. By implementing aggressive caching with Redis, the developer achieved an 85% cache hit rate, making the app viable for multiple users. This approach turned a potential deal-breaker into a manageable constraint.

In its first 30 days, the project attracted 704 users with a 12-minute average session time and a 67.6% engagement rate, all without paid marketing. The developer learned to prioritize privacy and design for constraints early. Future plans include a thread unroller and a browser extension, with open-sourcing under consideration.