Builds

Welcome to my builds section. This is where I document and showcase various projects I’m working on or have completed.

Current Projects

Critical thinking infrastructure

An infrastructure platform for logistics planning built around one idea: compress the explore-decide loop. Ask a question, get an answer, ask a better one, all within a single working session. It separates stable spatial knowledge (road networks, facilities, geographies) from volatile project data, and routes planning questions through solvers, LLMs, and spatial engines via a clean ontology layer.

The ideas behind it are developed across a series of seven essays, from motivation through architecture, economics, and the human layer.

SGData Platform

A Kedro-based data platform that sources, processes, and links Singapore geospatial and government data from five sources: the data.gov.sg open data portal (5,000+ datasets), Foursquare Open Source Places (435K POIs), OpenStreetMap, Overture Maps, and Microsoft Global ML Building Footprints. The pipeline converges everything into a unified spatial-relationship layer spanning 511 datasets and 24,000+ pairwise overlap records.

Past Builds

Singapore Postcode Geocoder

A Streamlit app that adds lat-long coordinates to a data file containing Singapore postcodes. It automatically finds the right column, extracts postcodes, and returns coordinates. Useful for logistics planning and mapping.

MCARPTIF Solver and GUIs

Heuristic solvers and GUIs for city-wide waste and recycling collection problems (Mixed Capacitated Arc Routing Problem under Time restrictions with Intermediate Facilities). The work was adapted into a commercial service and later extended with an agentic LLM-driven planning approach.

Build details