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1.
AirGradient Open Source Air Quality Monitor for CO2 and PM2.5 Measurements (airgradient.com)
557 points by ahaucnx on Jan 29, 2023 | 159 comments
2.
Sega Saturn CD Cracked after 20 Years (youtube.com)
1126 points by flurpitude on July 11, 2016 | 223 comments

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