Use the Outer Wilds Mod Manager for downloading, installing, and managing mods.Source code
Outer Wilds is a neat game. Check it out and buy it or whatever.
If you need support, or just wanna interact with other fans of the game, this is where you can find us:
If you want to make your own mods, the OWML documentation has most of the info you need to get started. The aforementioned Discord server also has a modding channel.Info for modders in OWML docs