author here: wasn't expecting this to show up on HN... sadly, it's kinda bad timing. A couple folks here have commented on problems getting it installed, AND there are some issues with large data in graphs which i've addressed locally but not pushed yet because.... I'm in the middle of rewriting this in Crystal so i can just give folks a statically linked binary to run and have better test coverage and many other good things (like cleaning up a codebase that kind sprawled out of control.... was just a quick hack that kept growing)
So: if you're interested in this please message me on twitter (@masukomi) or email me at masukomi@masukomi.org and I'll let you know when there's a new version and / or help you get the current version working.