You can set 1SE to automatically add the location where you've captured your snippets as a caption in the iOS app.
Tap on Profile.
Tap the Settings icon in the top-right corner.
Select Project Settings.
Toggle Prefill Caption with Location.
When adding a caption to your snippet, you can manually search for a site or use your current location by tapping the GPS button in the text field.
Make sure to give the app access to your location for this feature to work correctly.