Current I publish 2 walking videos per week on YouTube [1] also with a GPX Animation in the intro. For the GPX track I currently use the free GPX Animator [1] with some scripting of the CLI args.

I have experimented also with Mapbox and Remotion and could get nicer results than GPX Animator but it's not even worth the render time. Same for Google Earth Studio - it's just too slow as I often create batches of 5-6 videos per day. How long does one 20s video take to render - 4K60?

One thing I'd love to have is not just the GPX track but photos or video snippets popping up geo-located - maybe even info boxes for more than just a moving line. This could be coming from Wikipedia etc or some custom JSON data. There is potential to improve map animations but I can't see how I would recoup the cost per video. For me it would be worth less than $0.50 per video on my volume of 100+ videos per year. The web interface and video looks nice though the pricing is out of reach.

I wish you success and maybe there really is a market for premium priced GPX Animations. For me personally this could only work as a standalone app in the $30-$50 price range only.

Good job on the polishing!

[1]https://www.youtube.com/@poptravelorg [2]https://gpx-animator.app/