I can do guides in POL, cedega, Crossover, and WINE. This is the idea of, setting things up in slackware is similar to doing stuff manually in OpenSUSE, but you can also do it in OpenSUSE similar to Ubuntu with an online store.
At the same time, Arch is it's own camp because you need to test your packages.
It's just the thought that it can be different on separate systems.