Sequelize using ES Module imports

.sequelizerc.js

require('@babel/register')({
  presets: [
    ['@babel/preset-env', { targets: { node: 'current' } }]
  ]
});
const path = require('path');

const DB_PATH = 'dist/db'; // use dist instead of src directory

module.exports = {
  'config': path.resolve(DB_PATH, 'config.json'),
  'models-path': path.resolve(DB_PATH, 'models'),
  'seeders-path': path.resolve(DB_PATH, 'seeders'),
  'migrations-path': path.resolve(DB_PATH, 'migrations')
};

package.json

{
  "type": "module",
  "engines": {
    "node": ">=14.18",
    "yarn": ">=1.22"
  },
  "scripts": {
    "start": "node --experimental-specifier-resolution=node src",
    "db": "sequelize db:migrate && sequelize db:seed:all",
    "predb": "yarn dist",
    "dist": "cp -r src dist",
    "predist": "rm -rf dist",
    "postdist": "node setup-dist.js"
  },
  "dependencies": {
    "@babel/core": "^7.16.0",
    "@babel/preset-env": "^7.16.0",
    "@babel/register": "^7.16.0",
    "sequelize": "^6.8.0",
    "sequelize-cli": "^6.2.0"
  }
}

setup-dist.js

import { writeFileSync } from 'fs';

const file = './dist/package.json';
const data = '{ "type": "" }'; // to override ESM in main package.json

writeFileSync(file, data);