I customized the pulsometer by adding the calibration feature so I could use it as an asthmometer at work. This watch has saved lives and I mean that literally. I also helped maintain the first movement before the migration to the second movement firmware, merged in quite a lot of features.

Joey is one of the nicest maintainers I've ever worked with. The discord community is very nice as well. Haven't been very active nowadays due to life matters but I still monitor the discord and try to answer questions.