Fun to see this on HN! I originally created Gollum to power GitHub's wiki system and wanted to see if we could use Git to make our wikis more powerful AND more open. I thought it would be cool if you could just clone your GitHub wiki and modify it locally or export it to some other system if you needed, or have it all locally for an airplane trip without wifi.

Another interesting thing is that I used my Readme Driven Development method to develop it, which you can see in the Readme of the first commit: https://github.com/gollum/gollum/commit/c7875704971be998a539.... I wrote it before writing a single line of code and found it worked nicely to figure out the API and feel out the ergonomics of the text format. More on that approach here: https://tom.preston-werner.com/2010/08/23/readme-driven-deve...

Glad to see the project alive and well!