Sweet! Would love to host this myself and get rid of my Strava subscription.

I wrote a Python script that iterates through all of my activities there and downloads the `.gpx` for each - I could share the code if interested! Not sure how you'd integrate it into your app - maybe a "import from Strava" page could handle the Strava API auth?

I also love this idea of self-hosting some web apps (especially if they're containerized). I setup a `util.` subdomain and have started putting a few things there at different root directories. It's fun!