Solo zombie easter eggs

I have seen posts on other forums with files that allow to do the ascension and shangri-la easter eggs while in solo. The links in those posts are dead and don't work anymore.
I am asking for anyone to post working links for the files if possible.

https://wwm.lanzouw.com/iYrnj001wsah Don't forget to back up.Shangri-La needs to be turned on. The way to turn on developer mode is Open method is the same as other console commands. Open config with wordpad and add the instruction bind F1 developer_script 1.
After entering the game, enter a map casually, exit to the main menu after entering, and press F1 all the time. A line of words in the upper left corner indicates that you have entered the developer mode (don't care what is displayed later).
Then enter Shangri-La, and you can crack the egg by yourself (you will skip the first step of stepping on the slate), and specifically operate https://www.bilibili.com/video/BV1sz4y1m7VH.