Tool to convert OysterX data to GPX format

I wanted to move from OysterX to another location tracking app, but there was no way to export the data from OysterX in a standard format.

There are two SQLite database files that OysterX uses - OXDB_user and OXDB_world, I'm pretty sure OXDB_world is the one with the high resolution data, but I haven't figured out how to interpret it. What I did find was a nice list of coordinates in the OXStory table in the OXDB_user database. It's a pretty low quality version of the data, but it's good enough for my needs so that's what I used.

I've made a tool to extract a .gpx file from the OysterX OXDB_user file, which you can use here: OysterX to GPX Converter (everything is calculated locally, don't worry. I'm not harvesting your location history)