Nice execution. The local-first approach is a smart call for this kind of data — most people won't trust a cloud service with their exact location history across countries.
One nuance I've run into working in this space: the 183-day rule gets treated as universal, but the reality is messier. Some countries count partial days, others don't. Some have "center of vital interests" tie-breakers that override day counts entirely. And for US citizens, the day count is almost irrelevant — worldwide taxation applies regardless of where you sleep.
The Schengen rolling window is genuinely confusing for people and a strong feature to nail. Curious how you handle the edge cases where someone holds a residence permit in one Schengen country but travels freely across others — the 90/180 rule doesn't apply the same way in that scenario.
One nuance I've run into working in this space: the 183-day rule gets treated as universal, but the reality is messier. Some countries count partial days, others don't. Some have "center of vital interests" tie-breakers that override day counts entirely. And for US citizens, the day count is almost irrelevant — worldwide taxation applies regardless of where you sleep.
The Schengen rolling window is genuinely confusing for people and a strong feature to nail. Curious how you handle the edge cases where someone holds a residence permit in one Schengen country but travels freely across others — the 90/180 rule doesn't apply the same way in that scenario.
Congrats on the launch.