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Python AI Agent RAG LangGraph Qdrant LangFuse Docker Machine Learning Artificial Intelligence K-Means XGBoost LLM LangChain Customer Service Ollama FastAPI Backend PostgreSQL API Pandas Fuzzy Algorithm Data Analysis Streamlit Tooling macOS Shell Diagnostics
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Dokuprint Agent
Agentic RAG assistant for a print shop (LangGraph, Qdrant, LangFuse): prices PDFs and answers questions. 94.7% hit@5, zero invented prices across 47 evals.
Python LangGraph Qdrant FastAPI LangFuse
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Print Cost
ML document pricing (K-Means + XGBoost, 99% F1): prices PDFs at 7 DPI in 5 ink bands. 109 pages/sec via FastAPI + Streamlit, live on Hugging Face.
Python Scikit-learn XGBoost FastAPI Docker
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Live Demo
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Gadai Barang AI Customer Service
RAG agent for pawnshop enquiries (LangChain, Ollama Qwen3, Qdrant, FastAPI): identifies items, looks up prices, estimates loans, logs leads. Runs fully local.
Python LangChain Ollama Qdrant FastAPI
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Source code
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Warung Assistant
LLM front desk for small shops, fully local (Ollama, LangChain, CSV tools): customers chat, the owner handles cash. No vector DB on purpose, exact prices only.
Python LangChain Ollama LLM Gradio
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