My girlfriend and I are keen to build an app that allows people to find foods that are sustainable for a given location. The basic version of the app would focus on just 2-3 locations globally e.g. Singapore, Hong Kong and Sydney and provide a sustainability rating for foods based on various metrics e.g. carbon footprint, ecological sustainability, biodiversity, seasonality etc. The developer(s) will work with us for designing and building the app along with sourcing data.