So you're a Preact user, but want to use some React libraries with it. You wanted to set up aliases or something, but can't do it for some reason.
The preact-compat/react and preact-compat/react-dom alias repositories are here for you!
Install them as you would any other npm module, and these aliases will be used from Github:
npm i -S preact preact-compat/react preact-compat/react-dom
... or for Yarn users:
yarn add preact preact-compat/react preact-compat/react-dom