I have now played enough of Uncharted Worlds to realize that its design goals and methods are a bit too different from my taste for me to keep using these rules.
But I'm really happy for the hack, and for your work writing this down, Archangel! It got me and my group finally playing a PbtA space game seriously, and it has given me an excellent starting point to get my own space hack going!
Also, the generous CC license means I don't have to invent the wheel all over when it comes to a lot of stuff.
So, a big thank you for this! I'm super-happy you wrote these rules and made them accessible, both for playing and for re-hacking!
Keep up the good work, and have fun both playing and designing onwards from here!
Best, Simon