> I looked into .NET somewhat recently and came away with the apparently mistaken impression that Mono was how .NET did cross-platform. I guess I must have been

> I looked into .NET somewhat recently and came away with the apparently mistaken impression that Mono was how .NET did cross-platform. I guess I must have been reading old docs, History here https://en.wikipedia.org/wiki/.NET https://en.wikipedia.org/wiki/.NET .NET Core 1.0 (2016) was the first cross platform prototype. It got good in a release in 2018 or 2019, I even forgot which now. And took over steadily after that. We don't even think about it any more. "which OS is the prod env on" isn't a factor that causes any support worries at all. Getting set up would start at https://dot.net/ https://dot.net/ And the download page, which should show you content for your current OS https://dotnet.microsoft.com/en-us/download https://dotnet.microsoft.com/en-us/download But also other targets are here https://dotnet.microsoft.com/en-us/download/dotnet/8.0 https://dotnet.microsoft.com/en-us/download/dotnet/8.0 You'll want the latest SDK 8.0.x