This is the sort of project that, no matter how much you know, or think you know, and no matter how much experience you had, it'll still bring you right back down to Earth and humble you somehow. There is no curriculum for preparing for this. There is only "jump in and figure it out as you go".

So let's not criticize anyone for jumping in and figuring it out as they go, as it is the only way to produce a project like this.