Sounds very formal...but it's not..I've made a couple of things in C# because I tried out Talking SOAP with C#. But that was different. I imported web-references and used whatever was built from "our" supplier...

But this was my first "proffesional" application. The purpose of the application was to filter out mails by date, and print out attachments by date, in two different formats. First page was a "cover-page", and the second was an attachment in  the filetype .pdf, that was X-pages of stickers, that could be taken out from the subject of the mail. The project started June'2019, as a curiosity from my side. First commit to GitHub was in September'2019, after the project was approved from my employer.