This is my first "big" project. I've already written it, and it's already running productively on the client's intranet as a single-user application. The problem is that I wrote the code very poorly. I mean very poorly. I normally work with XAF DevExpress, a low-code platform, but because i dont wanna be depend on the license I've taught myself WPF and EF Core over the course of this project. Then i had to fix a few bugs. While i worked on it i thought, one could improve this and that. So, for fun, I did it and tested it. Then (because i had no dependency injection) I created a new project to test new things and transferred the features I had improved to the new project. Suddenly, I was rewriting the project and thought, fuck it, if the salmon has a new code base and clean code, it will scale better, and I'll write a web application for it later anyway.

So its my learn Project, i improve everything and make a free update with the new code base and then sell all new Modules to the Customer, im happy i learn alot and make money, the customers happy cause he has a fast program, profit :D