Yes, and I've done it in spurts, and then kind of neglected it on and off. Also it never really feels "done". Even just tonight I did some editing on it despite thinking I was ready to render it.
I've found working with music on Linux to be very powerful. It can be a little over-complicated at times (as Linux tends to be), but you also get a lot of possibilities from the complicated parts.
Audacity is great, and I definitely need to cover it at some point in the series as I've already had people ask about why it hasn't been mentioned. I tend to use Ocen-Audio over Audacity for small things, but Audacity is definitely more powerful.
Ardour is excellent, and I think of it as the Pro-Tools of Linux. In all of the real studios that I've read about using Linux they rely on Ardour as their core software. I tend to do less recording of live music though, and more "producing" with virtual-instruments/beats so LMMS is my go-to. I was an FL-Studio user on Windows and LMMS is designed like a clone of it.
Speaking of home movies, I need to transfer a ton of VHS to digital and I'm terrified of doing it because tape seems so fragile to me. I'm tempted to send it to a professional because it's hours of important memories that I don't want to lose.
RE: Linux Guide to Music & Audio Production PART-3 is OFFICIALLY in post-production!