Macaframa, a 2009 skate-video from a group of folks riding fixed-gear track bikes around San Francisco is up on youtube these days. check it out. really cool to see the city back then and these crazy mofos bombing down nob hill and up twin peaks.
the mastodon instance at cybre.space is retired
see the end-of-life plan for details: https://cybre.space/~chr/cybre-space-eol