Dev Tools · 1h ago
K-pop data pipeline uses Spring Boot, pgvector on OCI free tier
A developer built k-cosmos, a 3D music space that maps K-pop tracks using 768-dimensional vector embeddings. The system runs on OCI free tier with 4,000 tracks, using an autonomous sync cycle that ingests tracks, analyzes mood via LLM, and expands its database without human intervention. Performance bottlenecks were resolved by decoupling transactions and using Java 21 virtual threads.
Meridian48 take
While niche, this project showcases clever engineering under free-tier constraints, particularly the diversity-enforced vector search that prevents recommendation echo chambers.
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