Hi Christian, FYI, In order to improve the build speed of logback-beagle (using Tycho) I am now using p2 mirrors locally hosted on Nexus. The idea is a variant of a technique nicely described by Iulian Dragos at [1]. I have just extended it to use Nexus which is more convenient than copying the whole p2 repository for Helios which takes about 8 hours. For adding p2 mirroring support to Nexus, I followed Andreas Luedeke's instructions [2] and in short installed the following Nexus plugins: nexus-capatibilies-plugin nexus-p2-bridge-plugin nexus-p2-repository-plugin HTH, [1] http://www.iulidragos.org/?p=207 [2] http://tinyurl.com/cgvlsot -- Ceki http://twitter.com/#!/ceki