This looks awesome! What I look for in such an app would be the following features

Meal Planner: Automatically create a meal plan that fits certain criteria such as calories, cooking time, ingredient cost etc. while still allowing for pre-defined meals. This way I could say “I want to eat burgers on this day, make me reach my calorie goal as best as possible by adjusting the other meals on that day” I could imagine this to be implemented using a linear optimizer where the user can add constraints. For example optimize calories / macro nutrients towards this value, minimize cost, minimize cooking time on weekdays, allow more cooking time on weekends… I guess the constraints could be any data available per recipe.

The second feature might be something NutriTrace already does but being able to cook a recipe and then have calories estimated by the weight of the food on my plate would be awesome for recipes where it is not possible to measure individual incredients or which do not have a fixed portion size such as for example Chili con Carne or Stew. This might also play into the linear optimizer thing, where the optimizer could vary the portion size if needed.

I would implement something like this myself but I currently lack the time, so if other people are interested in such a feature too, it might be worth implementing :)

What I would like to see is a Windows challenge, where they try to achieve privacy as close to out of the box linux as they can get. That would probably genuinely be entertaining.

If you are interested try Localsend, its even less effort than sharing via a messenger and its peer to peer. You can enable auto downloads for trusted peers then it will be sent directly to a folder of your choice once you send from your phone.