Instructions different from cal.com docs? What to follow?

[notflip]

I haven't been able to get Cal.com running in a docker setup, there's the README instructions here, and then there's the instructions on the cal.com docs that talk about things like git submodules etc, which are not mentionned here?

https://cal.com/docs/introduction/quick-start/self-hosting/docker#requirements

Can someone tell me what the correct way to have cal.com running in docker is?