My eccentric self-hosting no-server-needed homebrew open-source solution since google reader died: http://github.com/akkartik/spew. Since I suck at UI, it has none. Instead it just leverages firefox UI for everything.
I haven't tried it on anything but ubuntu. Since it's firefox SDK I would hope it's cross-platform. Only anecdotal experience I heard was troubles with debian's iceweasel.
I considered screenshots but it's hard to show anything cool since it's all vanilla firefox UI. Here's an attempt: http://imgur.com/a/kT3NN. Is it helpful?