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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
i'd rather recommend https://github.com/8bitbubsy/ft2-clone for a more authentic experience. also it's just more pleasant to look at it.
Dirtywave also offer a “headless” version of the tracker that you can build for $40 with a teensy and an sd card. You have to connect it to your computer to use it, but it’s a great way to learn if a tracker is a good fit for you before shelling out $550.
they have a headless version of the M8 that costs around $30. https://github.com/DirtyWave/M8Docs/blob/main/docs/M8HeadlessSetup.md
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Hence, a higher number means a more popular project.