This is gold. I spent a lot of time a few years back looking for something like this, and the existing solutions were just terrible. Like the author says, the

This is gold. I spent a lot of time a few years back looking for something like this, and the existing solutions were just terrible. Like the author says, there just wasn't a usable dataset out there. Mostly there were a bunch of bad web APIs wanting to charge money for wildly inaccurate data. So yeah, this might still be inaccurate, but it's a huge step forward. Thanks!