Oh, sadness… dcamprof.html by itself is a worthwhile read; I regularly bring it up to do just that.
I just frantically went looking to see if I still had a copy; yes, 1.0.5, whew. Anders posted it with the GPL 3.0 license, so it’s okay to compile your own, and even develop it further, as long as the license strictures are met. I can’t find anything that intimates what Anders has in mind for dcamprof, so I’m reticent to fork it until I know that it’s not just a web server problem or something of that sort.
I have experimented with dcamprof to produce camera profiles for special situations, specifically handling extreme blues from theatrical accent lights. Actually the thing that worked best in all that was to apply Anders advice to my regular Argyll-generated ICC profile, scooching the blue Y primary down a bit. I did this with dcamprof; I generated a JSON file from my ICC file using dcamprof, edited it by hand, then generated a ICC file from the modified JSON with dcamprof. Yes, a bit convoluted, but my software doesn’t do DCP, yet…
From what I’ve read about Lumariver, most of it is about offering more-intuitive GUI controls for dcamprof command line switches. I’d surmise if you’re just creating target-shot camera profiles, not doing subjective look “pet-tricks”, the basic Lumariver will do what you need.