Since about 15 years ago, I have been thinking of creating a geo-referenced wiki of pubs, with loads of structured data to help searching. I don't know if that would be useful for anybody else, but I know I would use it!
Sadly, the many times I started coding something towards that goal, I ended blocked by something, and I keep postponing my dream project.
Independently of that, for the past two years I have been driving a regular social meeting in Dublin for CouchSurfers, called the Dublin Mingle. The idea is pretty simple: to go every week to a different pub, and make friends.
I wanted to make a map marking all the places visited. Completely useless, but pretty! So, I went back to looking into IkiWiki internals, as the current osm plugin would not fulfill all my needs, and has a few annoying bugs.
After a few days of work, I made it: a refurbished osm plugin that uses the modern and pretty Leaflet library. If the javascript is not lost in the way (because you are reading from an aggregator, for example), below you should see the result. Otherwise, you can see it in action on its own page: Mingle)
The code is still not ready for merging into Ikiwiki, as I need to write tests and documentation. But you can find the changes in my GitHub repo.
It is still a long way to go before I can create my pubs wiki, but it is the first building block! Now I need a way to easily import and sync data from OSM, and then to create a structured search function.