I dont have an asnwer for you, but a tip for avoiding updates breaking stuff. Apologies if you are awre of this, but seems like many are not so worth repeating now and then Make a copy of your your install folder, and play from the copy. Then when the game updates you wont be affected by the upate and can choose to update when everything is backed up for example Especially when using modded .dll files, since any file thats edited and not in the mods folder will be overwritten by steam. And I would also suggest regular backups of your saves, especially when installing or removing mods, its still an alpha game after all I do that on my server everytime I add or update a mod, jsut to be on the safe side
All I can say about this mod, is that I used it for a while, but not installed on the server. A friend of mine did not have it installed, but he saw the changes I made if he left the chunk and came back.. So might not need to have it installed on both pc's.
Edit: I would also strongly advice you to not use an Assembly-CSharp.dll thats from an older version of the game than the one you're playing