How would one go about integrating gulp-file-include in this boilerplate?

[aligajani]

How would one go about integrating gulp-file-include in this boilerplate?

[henrikhb]

I have not worked specifically with gulp-file-include.
But you would need to install it as per the instructions.
Then add require('gulp-file-include') in the top of the gulpfile.js and add the gulp.task('fileinclude'.. to the list of gulp tasks.
Then you need to make sure the two tasks gulp serve and gulp takes the new task into account by adding it to the array like gulp.task('serve', ['watchFiles', 'fileinclude'], function(){...
That would be how I would start to go about it but cannot provide more details since I have not used it.