Another sauerkraut resource is makesauerkraut.com. It has an extensive amount of information in the form of step-by-step instructions for crocks and jars, recipes, and reviews of various fermenting tools (including jars, weights, airlocks, crocks, and more).
I start by chopping up cabbage with a knife. I don't use a mandolin or food processor (neither of which I have). Impressed by the admonitions to be precise on the makesauerkraut.com, I weighed the cabbage as I cut it.

I was originally going for 10 pounds, because I have a 5-liter crock and 2 pounds per liter is a general benchmark. However, as can be seen, my cabbage is pretty coarsely cut, so eight pounds filled the crock leaving barely enough room to get the weights in. Think of it this way: Assuming equal density, a pound of sand occupies less space in a container than a pound of gravel.
I mixed it up in two-pound batches, because those are easy to deal with. I'm using a bit less salt than recommended on the makesauerkraut.com pages, sticking with one tablespoon per two-pound batch. It has worked well for me in the past. So far, I haven't had any failures with cabbage.
After salting and squeezing a bit, followed by some gloved-fist crushing and stomping with my wood bat, I sealed it up. I plan to let it go the full 28 days. As previously, I added a little salt water to the mix because I didn't have good coverage from just the cabbage's liberated juice alone. I added less than a cup of water that had salt added at the rate of 1.5 tablespoons per quart (or 1.125 teaspoons per cup).
I'm planning to let it go a bit longer because I've learned that I was indeed stopping my fermentations too soon, as mentioned in the previous post. The gaseous phase is only one of the steps in the fermentation process, and stopping things when that concludes is too soon. Another factor is that now that it is winter, my house is around 70 so the temperature should be favorable. We shall see how it goes. The quantity I'm doing this time around is the same as last time, except that it's all in the crock rather than split between crock and glass jar. This is the first time I can't see what's going on. It is, however, bubbling, so that is a good sign.