My most recent open source work was on a dialog design for scribus and it would be a rather dry thing to show, not to mention that a lot of work went into making it easier to code.
I would 
love to see more of this kind of open source design work both here on the discourse and also on the main site as part of a showcase. I actually think it’s a hugely underserved part of design + open source whereas things that are ‘visual’ (logos, UI etc.) are better served.
Part of working on that showcase piece would need to design for and include pieces of work like this.
So hey @Kai , I would love to see your design/proposal for this showcase 
if you want to mock something up I’m sure we’d all love to see the proposal and then work towards how it might fit on the site, you could put a proposal/mock here or even as an issue in the repo if you’d prefer (and it might get seen by other OSD members that visit there more frequently than this forum)