You can run your own copy of the Twine development tool, either by hosting it on your website or by running it in XAMPP. For example, here it is running on my own website. And here is the 4 Mb download if you want a copy. I also have a copy here on my Onedrive.

Why a local (offline) blog / website? So that I can be completely uncensored in my posts, and so that I can document personal or private things I don't want on the Interwebz. But also, so that (hopefully many years from now) I can leave the local blog as a curiosity piece, long-term diary, and window into my psyche, for my surviving family.