Buzzword things, MSBuild, project.json, csproj, sln. Those, except project.json maybe, aren't buzzwords by the typcial definition of it: they have existed for

Buzzword things, MSBuild, project.json, csproj, sln. Those, except project.json maybe, aren't buzzwords by the typcial definition of it: they have existed for >10 years or so and are the names of a build system and a bunch of project files readable by that build system.