Hello!
I'm going to present (as best I can, without images of the final result, unfortunately) the first project I completed entirely on my own: a mobile application for commercial visit reporting.
First, here are the resources for this article (nothing confidential, it was an R&D project which, although completed, was never deployed):
Quick summary
This was an application for Windows Phone, initially Windows Phone 8 (back in 2016), then for Windows Phone 10 Universal.
The project used the Windev development environment: a development suite published by PC Soft, a French company! This suite includes Windev (for software development), Webdev (for web development), and Windev Mobile (for mobile development).
The goal was to develop a small commercial visit reporting application that would communicate the entered data to an HFSQL database (Windev's engine). This database would then be queried by a server application (coded with regular Windev), which would create CSV files to be consumed by a program made by my mentor. This program would then feed the company's main database.
Q&A
Q: Why not feed the data directly into the company's database?
It's simple: it was impossible. The database was so old that it wasn't even a relational database (I believe the engine was called Proverb), and it was impossible to interface directly with modern languages. Most of the programs surrounding it were written in BASIC.
Q: And what was the outcome?
I did pretty good work. One week to learn the language, 5 weeks making websockets, and 3 weeks before the end, the phone fleet was updated to Windows 10 with new features. They wanted to keep me for part of the summer to finish, but ultimately there were no more funds to retain me, so the project was abandoned.
Q: What did you get out of it?
It was somewhat like a mix between Android Studio and Windows Forms, two technologies I had worked with in my courses. The team was very friendly, the project was stimulating, and it confirmed for me that software development was indeed the career I wanted to pursue.