Hi! The only thing limiting us from creating a Linux version of DMHelper is time. There are no platform-specific dependencies. If you or somebody you know is interested in contributing that integration, let me know!
Honestly, if I knew how to program I'd do it in a heartbeat. I'll keep my ear open for a possibility. I've used DM Helper when I had a Windows Machine. That's why I wish it was on Linux, I'm running with a Chromebook right now. I loved it and I am REALLY looking forward to the newest release.