Sorry for not knowing ....

[Moody617]

Where do I download the public build!

 

[Kiwi Shark]

https://ahwoo.com/store/KPbAA1Au/kitten-space-agency

 

[selden]

To clarify slightly, on the page https://ahwoo.com/store/KPbAA1Au/kitten-space-agency
you should see a link which says "Download for Free" followed by a download icon. Click on that download icon.
(That same line includes a blue/white link to KSA's discord server.)