If you want revival with game servers hosting (like Syntax, Limbo, Void, Roblonium) , you'll need VPS, other stuff, and TONS OF LINES OF CODE
And yeah, your website domain needs to be 10 characters
Also, some decals, models, etc. are deleted, so you will need to reupload stuff
Some tips:
1. Make API, that redirects to assetdelivery
2. Make join script, etc.
3. Patch clients. There are tons of guides.
4. Now you can host localserver, and join it from client.