The article is great.

i used this process to create a package and i get this warning when i installed the package.

The warning also exist for the package created in the article, i am hopping you could look into it.

WARNING in ./node_modules/my-react-typescript-package/dist/esm/components/App.js

Module Warning (from ./node_modules/source-map-loader/dist/cjs.js):

Failed to parse source map from '/Users/c/Desktop/projects/npm-packages/testing-package-typescript/node_modules/my-react-typescript-package/src/components/App.tsx' file: Error: ENOENT: no such file or directory, open '/Users/c/Desktop/projects/npm-packages/testing-package-typescript/node_modules/my-react-typescript-package/src/components/App.tsx'