With .Net 10 and C# 14 releasing a couple of weeks before AoC 2025, I couldn't resist using it to write this year's solutions. This was also a chance to write the solutions "script-style" with the new dotnet run app.cs functionality, so the solutions could be run individually and quickly iterated on.
All AI features were disabled in VS Code to bang up these solutions, though I did use AI to write the first iteration of the template.
I aim to try to rewrite all needed helpers if I can for practice so there might be some code duplication, but the day's solution should be runnable from a single file.