Integrate with web services for ACLing / sharing models
The primary limitation of TagSpaces compared to other cross-platform note and file management tools is the lack of collaboration support.
If files could either be exposed in cloud file management systems (e.g., as a Drive compatible app) or could (via OAuth) represent those services as Locations, and display the files within them (e.g. SkyDrive or Google Drive docs), it would avoid confusion of whether to create a doc within TagSpaces or cloud-side if the user needs to collaborate on it with others.
Claudius Ellsel commented