3.0 | Building

Luckily it's just a standard Visual Studio solution. If you start the extension, it'll download the dependencies, build the language server, and the extension. While the solution downloads the language server's dependencies, generates code, and builds it, it still needs some programs to be installed, like Node.js, or the OpenJDK. If you want to know more about building and running the extension, there are step-by-step instructions in the wiki.