https://blog.liblab.com/typescript-npm-packages-done-right/ https://docs.github.com/en/packages/working-with-a-github-packages-registry/working-with-the-npm-registry

Steps

• init repo
  • install packages
  • create file and directory
• config typescript
  • src dir
  • out dir
  • add scripts - build - tsc to package.json
• further typescript configuration
  • compability: target: 'es2015'
  • ship types: declaration: true, declarationMap: true
• further package.json configuration
  • entry point when being imported

  "main": "dist/index.js",
  "types": "dist/index.d.ts",

  notice it's not .ts because it's compiled.
  • specify files to ship with the package

  files":[ "dist","src" ]

• last step

npm
npm login
npm

• optional
  • include repository in package.json