Impossible to disable postcss-calc in production

[dangelion]

I have to disable postcss-calc because in production makes wrong calc (see the reported bugs at the end).
That library, I think, is used by cssnano.
In Sage 9 I did this adding calc: false in postcss.config.js file:

const cssnanoConfig = {
  preset: ['default', { discardComments: { removeAll: true }, calc: false }],
};

module.exports = ({ file, options }) => {
  return {
    parser: options.enabled.optimize ? 'postcss-safe-parser' : undefined,
    plugins: {
      autoprefixer: true,
      cssnano: options.enabled.optimize ? cssnanoConfig : false,
    },
  };
};

Tried also this:

mix
  .sass('resources/styles/app.scss', 'styles')
  .sass('resources/styles/editor.scss', 'styles')
  .options({
    postCss: [
      require('cssnano')({
        preset: ['default', {discardComments: {removeAll: true}, calc: false}],
      }),
    ],
    processCssUrls: false,
  });

No solutions work and give no error!
How can do that?

Or how can remove postcss-calc at all from Sage 10?

Bug: cssnano -> postcss-calc compiling in production
doesn't keep parenthesis inside some calc() with css variables

postcss/postcss-calc#115
postcss/postcss-calc#107
postcss/postcss-calc#91
postcss/postcss-calc#77
postcss/postcss-calc#116
NMFR/optimize-css-assets-webpack-plugin#110
cssnano/cssnano#628

[github-actions]

Hi @dangelion,
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