nest-cli-prod.json

{
  "$schema": "https://json.schemastore.org/nest-cli",
  "collection": "@nestjs/schematics",
  "sourceRoot": "/src",
  "compilerOptions": {
    "assets": [{ "include": "mail/templates/**/*", "outDir": "./dist-prod", "watchAssets": true }],
    "watchAssets": true
  }
}