From The New York Times:
Adrian Dybwad, 49, the founder of PurpleAir, has built a map to show what every PurpleAir around the world is reporting. Local government air quality monitoring groups are using the devices.
It hooks up outside, connects to Wi-Fi, feeds into a global network and creates something like a guerrilla air quality monitoring network. In the last year, interest in the project has spiked. Now it has more than 3,000 monitors reporting data every day.

I had no idea it was multiplayer - that is so cool! Gstreamer runs locally but outside the browser. But check this out: Mozilla is pushing their Rust language for developing virtual reality engines for 3d games. Check out their new browser: blog.mozilla.org/blog/2018/09/18/firefox-reality-now-available/

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