[alfonsodev]

yes, it is posible, in practice the only difference is that some commands like build, eject, build:markdown you'll have to add the word run.

`yarn build` equals `npm run build`

`yarn eject` equals `npm run eject`

and so on ... except install, start and test which work without run.

`npm install`

`npm start`

`npm test`

There is another difference which is about the .lock file, you can delete yarn yarn.lock and keep the package-lock.json that will be generated after you run npm install.

To understand how this affect you need to understand semver and how the lock file works.

[philliphaydon]

<3 thanks.