This plugin has the goal of being generally useful when working with nixpkgs/NixOS/nixops, it aims to provide the following:

• Syntax Highlighting
• Linting
• Profile management
• Suggestions for:
  • Attributes
  • Builtins
  • Filesystem paths
• Templates for common usage patterns

Using the gradle wrapper is easy:

./gradlew build

You should then find the plugin in build/distributions/NixIDEA-<version>.zip.

In Settings -> Plugin -> <little wheel icon> -> from local disk...

The plugin can be found at the Jetbrains plugin repository as NixIDEA.

Same process as locally to import it, just skip the build part of it.