I'm thinking we might be able to make any wiki page be a mobile phone app that does things but doesn't confuse people with neighborhoods and lineups. We used this strategy for our RSS support which was just enough to show that no one cared. >> pwa
Mozilla's PWA how-to with introductory materials and step-by-step guides. mdn 
How to build a PWA from scratch with HTML, CSS, and JavaScript. post
How to Make a Progressive Web App From Your Existing Website. post