How do I mount CSS Content to my Garryโ€™s Mod server?

Mounting CSS is simple when using Physgun, simply replace the config in /garrysmod/cfg/mount.cfg

// Use this file to mount additional paths to the filesystem
// The folder you provide must contain either one or more *_dir.vpk files or the usual models/materials/etc folders
// Lines starting with // are comments and are ignored by the game
// This file will also affect Hammer Editor (hammer.exe)
//

// DO NOT add a slash to the end of the filename
// DO NOT start lines with // in between { and }, the 2 lines there are commented out examples and will be ignored by the game

"mountcfg"
{
	"cstrike"	"/cstrike"
//	"tf"		"C:\mytf2server\tf"
}

// DO NOT start lines with // in between { and }, the 2 lines there are commented out examples and will be ignored by the game