btw: Georust has released GeoJSON 1.0: the library has been stable for a long time, but
@ikawe recently shipped a significant perf improvement (it was already extremely fast. It is now faster) and we felt that it was time to commit to a stable 1.0 release: https://crates.io/crates/geojson / https://docs.rs/geojson/1.0.0/geojson/
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