It would be cool if dashboards could render immediately after an on-wiki config was written. It may be a little slow to run this as the default mode in production, so to facilitate demos and dashboard previews, we can re-organize the code as follows:

• new universal layout
• new routing component that loads, reads the URL, figures out the layout and config
• the universal layout renders the dashboard according to what the routing component above parses out
• the wiki page with the dashiki config could have a link out to this preview domain on labs (eg. dashiki.wmflabs.org/metrics-by-project/VitalSigns)