Generate heatmap from .gpx files.

1. Get your hands on your .gpx files.
   1. If you use Strava: Request a full backup of your Strava data via https://www.strava.com/athlete/delete_your_account.
   2. Else: Or get your .gpx files from any other provider.
2. Built venv from requirements.txt.
3. If there are .fit or other files, convert them to .gpx first via fit_to_gpx.py.
4. Execute gpx_to_map.py.

• .gpx:
  • https://pypi.org/project/gpxpy/ <--most stars by far.
  • https://pypi.org/project/gpxplotter/
  • https://pypi.org/project/gpx-converter/
• .fit converter:
  • https://pypi.org/project/fitparse/
  • https://pypi.org/project/fit2gpx/

• Saving map:
  • https://stackoverflow.com/questions/66140534/how-to-save-a-map-section-in-python-using-folium
  • https://stackoverflow.com/questions/53565979/export-a-folium-map-as-a-png