This is by far the most time we've spent on a tool at Glumdark. It's intended for use in TTRPG campaigns. We use a lot of madlibs-style randomness drawing from dozens of tables with hundreds of rows of handwritten content. Some of the smaller pieces of content are generated through simple markov chains.

If anything, what's interesting is not the technology but the sheer amount of tuning is required to get it to feel natural.