While this is true for nearly all software, I missed being in control of when to upgrade, and I also missed a few little features here and there. The result? I shopped around for it a bit and then decided to roll out my own: HastySite (https://hastysite.h3rald.com) which now powers a bunch of sites of mine like https://h3rald.com and https://min-lang.org
Actually I ended up writing my own markdown processor and my own programming language before doing that (which also needed a Readline/line noise replacement, and wrappers for a regexp and compression library) but... hey, that's part of the fun isn't it? That's the very reason why I love being a programmer: it's not about the final result, it's about how you get there and what you learn along the way.
So kudos to you sir, I wish you all the best and that you build more things yourself.