After I finished Crafting Interpreters, I took the build system I wrote for that and wrote a static site generator for my blog using it. It's so much better than what I was using before (Jekyll). The performance is literally 100x faster. It produces exactly the output I want.
I realize "write your own static site generator" isn't the right answer for lots of people, but given how much existing technology you already have for your main site, Amit, I bet it's definitely the right answer for you.