I’d love to contribute but unfortunately, I don’t know a thing about C++ programming or development in general.
Maybe we could consider placing “help needed” notices on the Haiku website? From a newcomer’s perspective or for someone who is viewing the project website, there is no real call for help to whoever is building the website. If we place something more obvious, like a banner reading “Haiku needs your help!”, people will be more motivated to look into how they can help out with the project, and not just with WebKit. The banner could link to a page where we list all the main prioritised areas of improvement for the OS and what sort of help we need (i.e. do we need someone who knows a specific programming language?).
I could write the proposed page myself and presenting a first draft to everyone on here, but obviously I’d need to see if others think this is a good idea, and I’d need to know more about what work needs to be done to get Haiku closer to Beta 3 and perhaps R1.