How to set up a grant for multiple versions of a project?

Question

Grunt.js

Task:
Set up a grant file that is located in the root folder of the project on a par with the desktop, mobile, tablet versions of the project
Location of folders in the root:

Location of folders in the project version:

Problem:
Each project has a less folder to which grunt less compression and other grunt plugins are applied , it is necessary that the compiled css is placed in the dist->css folder of this project.
I don't want to write different tasks for the grant. Is it possible to somehow set the folder for saving files in the project relative to the project in which changes occur, while the grant is common to everyone, since it performs the same tasks and it’s enough to switch the grant when moving to another project folder.

Answer 1

And what's the problem with writing a task for each version?

less: {
  options: {
    compress: true
  },

  desktop: {
    files: {
      'desktop/style/app.css': 'desktop/style/app.less'
    }
  },

  tablet: {
    files: {
      'tablet/style/app.css': 'tablet/style/app.less'
    }
  }
}

Then call as grunt less:tablet or grunt less:desktop respectively.
Well, with the help of templates , this code can also be shortened and eliminated from duplication.