So... I didn't think I would crunch this hard, but I did it. I spent the last few days working tirelessly on the public release of Pathos, to remove spoiler code and content, to remove as much Half-Life content as I could, and to write documentation. After all that blood and sweat, I present to you, the public release of Pathos on Github:
https://github.com/TheOverfloater/pathos-public/tree/main
This includes the files required to run the game, along with some example levels, example NPCs and models. I have decided that for now, I will not include the custom Hammer editor I use due to obvious reasons. I recommend using JACK, but more is explained in the readme.
I hope you find it useful, and enjoy.
Or better yet.
Join the Xbox homebrewing scene and make a build for the original Xbox!