As a .NET developer since the early days, it's purpose has always been to sell more Windows Server and SQL Server licenses. For the first 15 years, there was no

As a .NET developer since the early days, it's purpose has always been to sell more Windows Server and SQL Server licenses. For the first 15 years, there was no official support for other platforms. More recently, the runtime is cross platform but many libraries only have support for MSFT products out of the box (e.g. WPF, or entity framework relying on external maintainers to write providers for most popular OSS DBs).