Flutter Google Maps App -- 2

This app will track and notify when trees are ready for harvesting. Ability to add markers to a google map - that have the following functions: Add marker, with following editable details: Last harvest date Ready for harvest date Number of trees Address (google maps navigation link) Notes (user can write notes) There should be 6 markers (use different colours for now, I will get some markers designed): 1 tree empty 1 tree full 1-3 trees empty 1-3 trees full 4+ trees empty 4+ trees full Select multiple markers on the map, when selected there are two options: Email selected marker details to email and Navigate - navigate will navigate to the closest marker first and also have stop B, C, D etc. User should receive a notification at 5am when a tree or multiple trees are ready for harvesting in the form of a notification. Eg. (8 Trees are ready for harvesting, click here to see them). Clicking the notification will open the app and show the trees on a map. The user can then choose to email or navigate. At 8pm user should get a notification (5 Trees will be ready to harvest tomorrow, click here to see them). App stack: Flutter Will not require web server, data must be stored locally in the form of JSON. Data should be backed up daily to Google drive automatically and if needed, restored if phone is lost/broken.