I'd encourage you to publish this to npm as an offical package. Since this fork is already using the react-app-rewire-css-modules name on npm, you'll likely need to release it scoped under your username. This would allow people that want to use this project the ability to pull in npm package versions based on semver based releases.
I was looking on npm for this package and noticed that https://www.npmjs.com/package/react-app-rewire-css-modules does not actually map back to this repo. Instead, it looks like the npm package with that name maps to this fork.
I'd encourage you to publish this to npm as an offical package. Since this fork is already using the
react-app-rewire-css-modules name
on npm, you'll likely need to release it scoped under your username. This would allow people that want to use this project the ability to pull in npm package versions based on semver based releases.