Sigh.
Sigh.
I do both - I have all the sources for all the public modules I can find (and there are usually about two more added, on average, every day by the community... WOW!) and I build VCV Rack from sources every week or so, just to see the development pace (and what a pace it is!), but I also just go through the web page, use an account, install the free plugins through the Plugin Manager feature, and so on.
It helps to compare the two while developing my own plugins.
And I have to say that this app is amazing! I've rekindled my love for modular synthesis (been into synths since the 70's) because of this app, and its all I'm taking to my bands jam sessions these days -replacing a suite of digital/DSP synths that I was previously relying on.