Is anyone have an Alternatives to keyframe mp on linux?(animators plz help me :( )

Hi everyone
I’m looking for a tool that will help me analyze animations and reference videos (draw on video and export with the drawings on top) similar to what you can do using keyframe mp pro.
I have tried mrviewer but it is not working correctly on my Linux distro for some reason (I’m having export issues using mrviewer).
I’m tired relaying on blender annotation and grease pencil tools
any suggestion would be awesome, and plz keep them coming, I will try everything you provide
thanks

djv.sourceforge.net/ Maybe this?
I learned about it from watching a blender conference video youtube.com/watch?v=OBY7B6KgWF8
Other stuff here
openvisualfx.com