Redmine.suse.de (as an inhouse tool) is very close to be a jump in replacement for Trello.com (the outhouse tool). Investigate into setting up a redmine-board so that it has exactly (and only) the features a Trello board has,

A web frontend for the mirrors in the mirrorbrain database to allow the mirror admins to manage their entries themself. You might know MirrorBrain already: our download redirector and Torrent/Metalink generator used u.a. on download.opensuse.org. It's really a great tool that plays a hidden key role inside the openSUSE infrastructure.

www.opensuse.org is the single most accessed page in the SUSE/openSUSE universe. With 1.5 million visits per month it generates 2.5 million page views and has around 500 people on the page at any given time. Yet it's one of the oldest, crufty pages we have! It doesn't concentrate on what it should do: Tell people about the distro so they download it. It's design is 5 years old, it's not mobile, it's not accessible. There is absolutely no interactive, engaging content at all and the technology used goes as far as a shell script/cron to update dynamic content.

The huge glass front of the Allhands Area facing Maxfeldstrasse wants to shine in Geeko-Shape. Prior art: