Hi,
i love tiddlywiki as a single file application for years, but now i had the task to migrate the content to a web based wiki. there are a lot of guides old and new, but nothing really worked for me. my task was to export each tiddler into a .txt file (can be changed to .md as well, but you have to tweak the content yourself to the official markdown language)
so i decided to make my own barebone solution to extract the tiddlers with python. you can check it out in my github project: GitHub - IE404/tiddler-export: exports each tiddler of a local tiddlywiki file to a textfile