No documentation for css-sniper

[unbelievableflavour]

For our project we created a subtheme of thunder_admin and ran into problems integrating css-sniper just like https://www.drupal.org/project/thunder_admin/issues/2942890. Please expand the documentation so we know how to use css-sniper.

I'm currently running the following command from my '/web/themes/custom/my_theme/'

yarn css-sniper --output-style uncompressed --include-path ../../contrib/thunder_admin/sass-includes -o css sass

Which causes the following error.

Error: Couldn't resolve path
        on line 1 of ../../contrib/thunder_admin/sass/components/admin-list.scss
        from line 4 of sass/thunder/thunder-admin-components.scss
        from line 1 of sass/components/components.scss
>> @import "@theme-seven/css/components/admin-list.css";

[unbelievableflavour]

We got it working after 4 hours of trying. But documenting css-sniper would still be usefull for the next person.