From my understanding, .NET, C# F# are all open source. The main thing in the tool chain that isnt is Visual Studio but most people can get by with VS Code
Highly recommend using JetBrains Rider instead if you want the best IDE experience. It's not a Microsoft product & is used by a large percentage of .NET devs.
Highly recommend using JetBrains Rider instead if you want the best IDE experience. It's not a Microsoft product & is used by a large percentage of .NET devs.