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Web products, AI systems, and the engineering decisions behind them. Filter the index by status, stack, or year.

Techall Next.js React Typescript Drizzle ORM PostgreSQL Supabase Node.js Python Fast API Scrapy Elasticsearch Reddis Docker Rag Express.js Socket.io Express.Js MongoDb WebRTC

Yearall 2026 2025

Olivia

Olivia is an end-to-end search engine demo that crawls websites, indexes web pages, computes ranking signals like PageRank, and delivers fast, relevant search results through a FastAPI backend and a React frontend. The project is designed as a practical playground for experimenting with web crawling, information retrieval, search ranking, and search quality evaluation.

Python · Fast API · Scrapy · Elasticsearch · PostgreSQL

building2026