Software Development : Drivers lock book

Drivers lock book for Germany.
To be build with https://flutter.dev/
for iOS
android and
web
Hardware GO9
as well as the the begin odometer reading from the ECU / so called row odometer wich can not be manipulated

We trigger with ignition on / off
start stopp odometer reading
driven mileage / distance
start stopp address with zip, town name, street-name, house number

the trips must be categorised in
business trips
commute
privat
with privat trips we show only the start / stop odometer and driven mileage per trip

to differentiate between the categories we can use