Hi @alfredopacino,
Unfortunately, no short term nor mid term plans for Linux support on spacedesk server.
Protocol specification is not publicly available.
You can only use your Linux machine as client via spacedesk HTML5 VIEWER http://viewer.spacedesk.net/.
Keep in mind that this HTML5 VIEWER app on Linux is much slower than our native apps on Android and Windows.
This is due to technical limitations of HTML5/Javascript.
