Hacktoberfest is an annual celebration by Digital Ocean, GitHub, Intel, and DEV Community to promote participation in open source projects, such as NodeBB. All you need to do is submit 4 pull requests within in the month of October!
You could either install node.js into your box ( if possible ) and accommodate NodeBB into it. Or, get a new VPS, install NodeBB on it with meeting server requirements. Link it to your choice of sub domain.