Spreadsheet Functionality
We want to be able to manage budgets from the app UI. Possible approaches to look at: Read/write to NextCloud? https://nextcloud.com/blog/using-webdav-fs-to-access-files-in-nextcloud/ https://nextcloud.com/blog/using-webdav-fs-to-access-files-in-nextcloud/
Don't use NextCloud, use handsontable? https://pypi.org/project/django-funky-sheets/ https://handsontable.com/
Export to excel format in nextcloud? https://assist-software.net/blog/how-export-excel-files-python-django-application
Other approaches?