Download the latest Dev Kit:
- Visual Studio 2017
- Visual Studio 2017 Workload: .NET Core Tools
- .NET Framework 4.6.2 (Separate download for Windows 8.1 and older)
Prepackaged releases which install automatically and allow you to build your own operating systems with Cosmos and Visual Studio.
Dev Kit (Developer Kit)
In addition to the User Kit prerequisites, Dev Kit also needs these:
- Visual Studio 2017 Workload: Visual Studio Extension Development
- Inno Quick Start Pack (Free) – Install with defaults, keep Preprocessor option checked
Source which allows you to build your own operating systems, and also directly work in COSMOS source as well. Installation simply requires running a .bat file after each source sync.