Why would you think development of fluxus "has stopped"? The mailing list [1] is active enough for such a minority project, and the git repo [2] shows a reasonable activity for a mature (i.e. "done") project, with functionality commits from October last year, and French localisation commits from April this year (last one on the 19th, so less than 24h ago).

[1] http://lists.pawfal.org/pipermail/fluxus-pawfal.org/ [2] https://savannah.nongnu.org/git/?group=fluxus