I want to get more intentional about my fitness and measuring my performance and whatnot. As such, I’m in the market for fitness tracking technology for the first time.
However, I’m very much a Free Software / self-hosted sort of person, and I’m very un-thrilled about how proprietary all this stuff seems. It looks like the sensors themselves are kind of standardized (“ant+”, whatever that is), and some of the data formats can be imported and exported, but the bike computers themselves and the companion apps and the online services appear to be trying to become walled gardens.
Short of building a bike computer from components myself, what hardware and software should I be looking into?
Edit: my most immediate concern is figuring out what bike computer to get, to be able to log data from the ANT+ speed, cadence, and heart rate sensors I’ve already bought (along with a GPS track). I’m considering anything from a Wahoo ELEMNT Bolt V3 ($300), to an off-brand(?) one like a Magene C506 ($100) or iGPSSport BSC100S ($38), to using my smartphone with an ANT+ dongle and the “A Training Tracker” app (Github, Play Store).


Regardless of who he is or how tackless he is: the point that just going out there and enjoying the ride is golden and shouldn’t be lost on you.
Do you even begin to understand how fucking presumptuous it is to assume I need to be told that? I have been riding bikes for decades and have never used a bike computer. I wanted advice for the thing I don’t already know plenty about, not the thing that I do!
You two need to get a clue that this discussion is supposed to be about bicycling and your high horses aren’t welcome.