Looks like Arc is considering auto exports of location data, but no storage providers are planned, besides iCloud: https://changemap.co/bigpaua/arc-app/task/3390-automatic-saving-of-json-to/

Arc is planning a direct integration though :)

Aside from checkin count and location data, something I’d really love to track would be the time I spend at the office daily. Maybe other locations as well, but I feel like that specifically has the biggest impact on my overall mood and well-being 😅

Since I do have the automatic Arc JSON exports with all necessary data available locally though, perhaps that would be a good candidate for a periodically run script.