This step extracts bounding boxes for populated places from the OS Open Names dataset, which is available for free download: https://www.ordnancesurvey.co.uk/business-government/products/open-map-names
go run ./cmd/save-gob/... opname_csv_gb.zip ./pkg/placenames/placenames.bin
I have included a the compiled extract in this repository so you can skip this step.
## Binary embedding
We use [mule](https://github.com/wlbr/mule) to embed the gob data in the compiled binaries:
go get github.com/wlbr/mule
Make sure the `mule` command is on you PATH before running `go generate`.