This area of translucentcode.org holds information on GNU arch archives hosted here.
Currently there is only one archive, Michael Twomey's projects, http://arch.translucentcode.org/archives/mick@translucentcode.org--2004-projects.
To register this archive using arch:
$ tla register-archive http://arch.translucentcode.org/archives/mick@translucentcode.org--2004-projects
To see what's available:
$ tla abrowse mick@translucentcode.org--2004-projects