Tools

• PartTools
  A package for Unity 2019.4.18f that assists in creating .mu files and IVA layouts
• VSCode
  Mostly a text editor, but can also be configured to compile C#. Works great for editing .cfg files with this extension
• Visual Studio Community Edition
  A popular IDE for compiling C#. Can be used with KSPBuildTools to build plugin mods for KSP.
• io_object_mu
  A plugin for Blender that allows for importing and exporting .mu files. Versions 3.x are recommended.