https://discord.gg/z9Agwgptxk
To get onto the discord channel use the link above or if you have any trouble copying it then go to the book description at the bottom which may be easier to copy and paste.
There is not much right now since it is being used to help with proofreading and editing but I will occasionally post some pictures or updates to let you all know how far I have written and saved up in my drafts.
If I experience any problems in life that would delay the books completion then that may be where you would find out first. :)
As for other websites or things like Patreon for early releases, I have not thought about setting them up yet.