Traditionally (ASP) .NET was tightly integrated with the Microsoft stack of Windows Server, IIS and MSSQL. I'm not sure if this was really a must, but from what

Traditionally (ASP) .NET was tightly integrated with the Microsoft stack of Windows Server, IIS and MSSQL. I'm not sure if this was really a must, but from what colleagues told me it was a huge PITA if you didn't use those solutions. This has changed since with the arrival of (ASP) .NET core which is cross platform and a very open framework. But with many well established Node.js/RoR/Java solutions in startups and enterprises alike, I believe it'll need some time to gain traction.