Build log
Projects
Systems built end to end and written up honestly — what the problem was, what got built, what it cost, and what it still cannot do.
AI Research & Fact-Checking System
A research agent that decomposes a claim, gathers evidence from multiple sources, cross-checks agreement between them, and refuses to answer when the evidence is thin.
RAG Evaluation Lab
Most RAG systems are tuned by vibes. This is a reproducible harness that measures retrieval and generation separately, so you can see which half is failing.
Power BI Inventory Control Tower
An inventory dashboard built around the four decisions a stock controller makes each week, with a semantic model that stays fast on 40 million rows.
Microsoft Fabric Analytics Platform
An end-to-end Fabric implementation — lakehouse layering, incremental ingestion, dataflows, semantic model and deployment pipelines — with the decisions that are hard to reverse called out.
AI Invoice Processing System
An invoice pipeline that extracts structured data, scores its own confidence per field, and routes anything uncertain to a person — because 95% accuracy on invoices is a finance problem.
Laptop Data Platform
Ingestion, transformation, orchestration, testing and a BI layer — the full modern data stack, running locally on DuckDB, dbt and Dagster.
Algorithmic Trading Backtest Lab
A backtesting framework with transaction costs, slippage, walk-forward analysis and survivorship-bias handling — designed to stop a strategy looking better than it is. Educational research only.