I assume you're using 64-bit Arch Linux for these instructions but you should be able to follow if you have a basic grasp of the inner workings of your own distro.
Please note that patching the scripts, images and other stuff to use English is out of the scope of this post. To replace the Japanese script with the extracted ones plus Committee of Zero's other improvements, follow their full tutorial here.
They provide instructions on acquiring the Japanese PC version of the VN and the English translated PSP version legally. You need both to use their patch.
Please note that I'm not sure how well their patchers work under Wine as I performed it inside a Windows VM. I couldn't get the actual game to run inside the VM because of some weird driver issues.