Thanks a lot! I plan to go through the properties in a video, but haven't had the time to properly make it. As a fellow solo dev, you know how solo game dev is hard, right? So many fronts we have to tackle
Yes, it's quite nice to have complete independence (hence the name indie game dev.)!
I'm making my own engine because I love this part, I already do it for a living, but yes it's specially hard to maintain your own game engine, thanks for the acknowledgment! Personally, what I find most difficult is marketing and social-media stuff, It takes too long for me and I always feel like I'm missing something.