I just wanted to see how is .NET under Linux so i ported my app to ASP.NET Core + Entity Framework Core.
You will need the .NET 10.0 SDK to build/run this project (simply run dotnet build/run in the terminal).
Open the https://localhost:5001/ address in a browser.
You can log in with TestAdmin/adminPassword123 or with TestUser/simplePassword123
From there you can Generate/Save/Load dungeons, just like in the Android app.