I have improved the Google Maps that utilize Supabase for the location data.
You can query your location data from Supabase and pass it as a parameter.
There is now a Marker action callback that will return the clicked Markers data so you can save it to Page or Widget State.
I have also made defaultZoom a parameter.
I have submitted it as a Free Marketplace item to make it easier to use across multiple projects and pages.
Of course you can still load local asset and network images.
Until it's approved you can follow my new article on how to implement it yourself.
https://coffeebytez.medium.com/flutter-flow-google-maps-custom-marker-actions-792555759063
The following link is the submitted Custom Widget. It will allow you to add it once it's approved. Note the custom markers don't show up in Test and Run mode, you will have to run it locally.
https://marketplace.flutterflow.io/item/zeSFD2KlIXUOfcXYwi1e