I certainly support local first, but if it is trivial to enable sharing of map favorites and POIs on open social rails, your risk is limited to "personal to you" locations being shared. JSON or Sqlite is fine for local storage of course. It is after all most likely simply a list of POI UUIDs/GUIDs identifiers and/or latitude/longitude coordinates with attribute fields. Foursquare and other social geo checkins long predate this, but I would agree good opsec should be the default, while still enabling open sharing with your data prevented from being captured and held hostage by Big Tech, imho.
I have many custom Google Maps lists I would love to share publicly on AT Protocol (mostly from collecting places in locations I've traveled to others would want to visit), for example, but would want some labels of places to remain private (homes of friends).
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I certainly support local first, but if it is trivial to enable sharing of map favorites and POIs on open social rails, your risk is limited to "personal to you" locations being shared. JSON or Sqlite is fine for local storage of course. It is after all most likely simply a list of POI UUIDs/GUIDs identifiers and/or latitude/longitude coordinates with attribute fields. Foursquare and other social geo checkins long predate this, but I would agree good opsec should be the default, while still enabling open sharing with your data prevented from being captured and held hostage by Big Tech, imho.
I have many custom Google Maps lists I would love to share publicly on AT Protocol (mostly from collecting places in locations I've traveled to others would want to visit), for example, but would want some labels of places to remain private (homes of friends).
Export Google Maps List to CSV, KML and GPX - https://www.takeout-tools.com/blog/export-google-maps-list-c...
How to Turn Any List Into Google My Maps - https://www.lekoarts.de/how-to-turn-any-list-into-google-my-...
Google Maps Create a list of places - https://support.google.com/maps/answer/7280933
Example list: