The Kha guide is complete and is here. I broke the streak right at the end, just got forgetful after finishing, but that's OK.
Postmortem thoughts
I churned through a lot of ideas in the past few months along the lines of "making game related tools". This forced me to confront what I meant by that and how I could execute on it in a reasonable amount of time, without any meandering.
What Went Right
What Went Wrong
Conclusions
This was a really good use of Streak Club, and I should come up with another streak for next year, with a different goal for stretching myself. Even if I only present blog posts, it helps with habit-forming.