First of all congratulations to all for such an excellent project. I’m still waiting but I can contribute:
I would like to propose some ideas:
1-Book of Introduction to everything, with the history of building etc, can use this excellent author Alistair Stewart of Digital Skills
2-In the build guide there should be several translations to download in pdf, so I could see there are immense nationalities, I can translate into portuguese
3-Contests within the forum