Hi,

Unfortunately the project is no longer compatible with current version
of Twisted which Guix has, and no longer (7y) maintained, see
<https://github.com/ralphm/wokkel/issues/31>.

18.0.0 tag was placed on <2018-12-04>
<https://github.com/ralphm/wokkel/commit/53ae72c49c489bbf5af3b2c9f8c77985b3c9a34f>.

Closing as not applied.

--
Oleg