After a long time I have been at the #OSM meeting in #Bonn again this evening. It was really close to my home this time, so it was good opportunity to go there again.
And it was absolutely worth it. I have heard about a really interesting project I would like to try. Wanted to do something like that for a long time.

osm-history-renderer by MaZderMind on Github

an experimental, work-in-progress history renderer (including supplementary tools like an importer, some test-styles and a parially rewrite of the osm.org style)
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#osm-history-renderer