/** @type {import('tailwindcss').Config} */

const execSync = require('child_process').execSync;
const activeAdminPath = execSync('/app/bin/bundle show activeadmin', { encoding: 'utf-8' }).trim();
// const activeAdminPath = '/app/vendor/bundle/ruby/3.4.0/gems/activeadmin-4.0.0.beta18'

export default {
  content: [
    `${activeAdminPath}/vendor/javascript/flowbite.js`,
    `${activeAdminPath}/plugin.js`,
    `${activeAdminPath}/app/views/**/*.{arb,erb,html,rb}`,
    "./app/assets/**/*.{css,js,html,erb}",
    './app/assets/stylesheets/**/*.css',
    './app/views/**/*.{html,erb,slim}',
    './app/helpers/**/*.rb',
    './app/javascript/**/*.js',
    './app/admin/**/*.rb',

    // ActiveAdmin DSL files:
    "./app/admin/**/*.rb",

    // ActiveAdmin template inside the gem:
    "./vendor/bundle/ruby/**/gems/activeadmin-*/app/views/**/*.erb"
  ],
  theme: {
    extend: {},
  },
  plugins: [
    require(`@activeadmin/activeadmin/plugin`)
  ],
}

1. heroku-community/apt
2. heroku/ruby
3. heroku/nodejs

       $ tailwindcss -i ./app/assets/stylesheets/active_admin.css -o ./app/assets/builds/active_admin.css --minify -c tailwind.config.cjs
       Browserslist: caniuse-lite is outdated. Please run:
         npx update-browserslist-db@latest
         Why you should do it regularly: https://github.com/browserslist/update-db#readme
       
       Rebuilding...
       (node:1556) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
       (Use `node --trace-warnings ...` to show where the warning was created)
       (node:1556) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
       /bin/sh: 1: /app/bin/bundle: not found
       Error: Command failed: /app/bin/bundle show activeadmin
       /bin/sh: 1: /app/bin/bundle: not found
       
           at genericNodeError (node:internal/errors:983:15)
           at wrappedFn (node:internal/errors:537:14)
           at checkExecSyncError (node:child_process:888:11)
           at execSync (node:child_process:960:15)
           at /tmp/build_d740318b/tailwind.config.cjs:4:25
           at evalModule (/tmp/build_d740318b/node_modules/jiti/dist/jiti.js:1:251913)
           at jiti (/tmp/build_d740318b/node_modules/jiti/dist/jiti.js:1:249841)
           at /tmp/build_d740318b/node_modules/tailwindcss/lib/lib/load-config.js:53:30
           at loadConfig (/tmp/build_d740318b/node_modules/tailwindcss/lib/lib/load-config.js:55:6)
           at Object.loadConfig (/tmp/build_d740318b/node_modules/tailwindcss/lib/cli/build/plugin.js:138:49) {
         status: 127,
         signal: null,
         output: [ null, '', '/bin/sh: 1: /app/bin/bundle: not found\n' ],
         pid: 1585,
         stdout: '',
         stderr: '/bin/sh: 1: /app/bin/bundle: not found\n'
       }
       error Command failed with exit code 1.
       info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
       error Command failed with exit code 1.
       info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.