Nexus Sports
A local system for archiving, parsing, deduplicating, and analysing multi-brand workout data.
The problem
Workout exports differ by vendor and long-term records become fragmented or duplicated.
Approach
Parse FIT, GPX, and Huawei exports into a consistent activity model with maps, insights, and export tools.
Key engineering decisions
- Hash and time-window deduplication
- Compressed track storage in SQLite
- React Query request and cache state
Boundaries and limitations
- Imports depend on vendor export capabilities
- The default deployment targets personal use