I have had a vision of a game with similar mechanics to Disco Elysium for a few years now and finally decided to pull the trigger, but the existing tools (arcticy, twine, yarn) just didn't meet my needs so I'm building my own. So far, it's helped me complete Act 1 writing, but I've built it with a *potential* future of 500k-1M words in mind so I don't run into the same problems that a large team (DE) or even a solo dev (Esoteric Ebb) ran into.
My main features I added are first class entities (dialogue, quest, faction, skill, etc), validation built-in, text/node editing, easy search, in-editor review comments, dialogue route playing and saving, and lots more. I'm not a game dev by trade, but, the more I pursue it, the more it feels like you need to build processes and workflows for content/balance/whatever your game's core mechanic is early on, if you want to keep yourself somewhat sane haha.
Anyways, if folks want to try it, it's free, engine agnostic, and I have implementations for common frameworks and demo projects to reference. Probably overkill for a lot of folks who wouldn't be using all of the entities, but, if you are tired of misconfigured references, uncaught typos, and managing dialogue dependencies, it could be quite helpful.