hello
the Geiser website says that you can open a documentation buffer on the symbol at point with C-c C-d C-d
And then you can close it pressing "q"
Well, when I press "q" a q appears in the documentation buffer and the doc buffer stays there
With C-x k it kills the whole source code buffer I had started from !
To make things clearer, I made a little screencast, it's here
https://www.youtube.com/watch?v=VeVXsba0bG0&feature=youtu.beI installed Geiser with Guix installed with a binary installation on top of Fedora, the version is 0.8.1