.lintstagedrc.js

const path = require('path');
const buildEslintCommand = (filenames) =>
  `next lint --fix --file ${filenames
    .map((f) => path.relative(process.cwd(), f))
    .join(' --file ')}`;
// this runs the commands indicated on the following file types
module.exports = {
  '*.{ts,tsx,js,jsx}': [buildEslintCommand],
  '*.scss': ['npm run lint:scss -- --fix'],
  '*.{ts,tsx,js,jsx,json,md}': ['prettier --write'],
};