See the attached video

Explanation: In the db project of any template, if you manually delete the build folder and re-run npm run build, nothing gets outputted if the tsconfig.tsbuildinfo file is present. I guess this could be by design, since the tsconfig.buildinfo file might be some kind of a lock file, indicating that the build is up to date, but in practice, this hinder any other script that relies on that output being there, such as npm run pack from the respective templates root folder.

Suggested solution: add a clean script, such as

"scripts": {
  "clean": "rm -rf tsconfig.tsbuildinfo & rm -rf build",
  "build": "npm run clean & tsc -p tsconfig.json && tsc-alias -p tsconfig.json",
}

I can send a PR if you want me to.