Yeah, Reaper is very simple to use with video at the most basic level. It’s probably clunky compared to a specialised video program, but it works reasonably well, and there are some basic fx etc you can create with Reaper (I didn’t bother).
I just used my phone for one camera angle, and my iPad for another.
I think the most difficult part was outputting the .mp4 format. No matter how many videos I watched and how many things they suggested that I tried, it would only output a .mov format… which is rather strange considering I’m on a pc. In the end I dragged the .mov I got from Reaper into Mixcraft, and converted it to an .mp4 via that program… I must be doing something wrong in Reaper, but I ran out of patience in tracking it down.
Interestingly, when I uploaded the file to Youtube, even though I had not done any limiting or compressing on the master buss whatsoever, (I brought the peak levels up to -2dB) Youtube still turned down my mix by 2dB! Actually, scratch that - I misread. YT kept it at 100% of it’s volume. (I have no idea what it’s LUFS level ended up being, but it sounded ok to me)… Happy days!