Duty free

Open source

Tools, libraries, and templates I've built and contributed to. Everything here is free to use, fork, and adapt for your own projects.

GitHub

Free products

Tools you can use right now — no account needed.

MapDrop

Upload GeoJSON, style it visually, and share via a public link. No account needed.

deck.glSvelteKitCloudflare

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GeoChat

Natural language to spatial SQL. Ask questions in plain English, get interactive maps back.

Claude APIMCPPostGISMapLibre

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SveltoUI

2,065+ free, open-source Svelte 5 components. Copy-paste UI elements built with Tailwind CSS v4.

Svelte 5Tailwind CSSUI Library

Try it

Repositories

Libraries, tools, and research code on GitHub.

afterrealism

deck.gl-raster

GPU-accelerated Cloud-Optimized GeoTIFF (COG) visualisation in deck.gl. Fork optimised for Web Mercator with aggressive tile loading.

TypeScript

deck.glCOGWebGL

afterrealism

a5_fast

Fast Python bindings for the A5 discrete global grid system, powered by Rust and PyO3. Convert coordinates to grid cells, traverse hierarchies, and batch process millions of points.

Rust / Python

DGGSRustPyO3

afterrealism

GIS-ML-Workflow

Machine learning workflow automation for geoscience datasets. Preprocessing GeoTIFF files, feature ranking, hyperparameter tuning with Bayesian search, and model analysis on NCI HPC.

Python

machine-learninggeoscienceHPC

afterrealism

osm-tile-server

Minimal-effort OpenStreetMap tile server in Docker. Self-host raster map tiles from OSM data with a single container.

Docker

OpenStreetMapDockerself-hosted

Next step

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