hubobes

They did not replace repos, they exit in addition to the normal Arch repos, you can install any package from these repos if you want.

https://xkcd.com/37

How does Cachy not work? How do you even use it in the same sentence as Manjaro? Cachy is just Arch + some optimized packages provided by their repos. You can theoretically migrate from pure Arch to Cachy by adding their repos and even the other way around.