This is my personal arch install script. It has only been tested on a limited set of my own hardware, if you have any issues let me know.
Pull this from the arch iso live environment with: wget https://github.com/Voyajer/ArchMe/archive/master.zip
Then unzip with something like: 7z x master.zip
After extraction, cd into the folder created and run: chmod +x ainstall aconfig
Now you can execute ainstall by typing: ./ainstall
First figure out what your wifi device is named: ip addr
Then run this command: wpa_supplicant -B -i [your device] -c <(wpa_passphrase "[ssid]" "[password]")
Leave the quotation marks around the SSID and pass.
Then run: dhcpcd [your device]