Open source. Open possibilities.

Turf is a modular geospatial engine written in JavaScript for spatial analysis, providing tools for GeoJSON data creation and statistical operations.

A CLI tool for processing railway speed restriction data from spreadsheets and visualizing them on HTML maps.

tessella is a GPU-free Rust frontend for the MapLibre style spec that emits a renderer-agnostic capture stream. It handles style parsing, expression evaluation, sources, tiles, layout, glyphs, and orchestration but draws nothing, allowing a swappable renderer consumer. The project is at R0 with a frozen capture ABI, cross-compiles to aarch64/riscv64, and diffs against a C++ oracle.