I’ve been using DTC but I’m not particularly satisfied with it. Unfortunately nothing else looks good enough to switch to. Still I did the rounds to see which projects were still active and here’s what I found:

• DTC - http://www.gplhost.com/software-dtc.html
• RavenCore - http://www.ravencore.com/
• GNUPanel - http://www.gnupanel.org/
• ISPConfig - http://www.ispconfig.org/
• SysCP - https://www.syscp.org/
• vhffs - http://www.vhffs.org/