MythTV export/archive advice

I'm looking for some advice please. My 4 year old has 130+ episodes of
her favourite show Mister Maker. I want to get them out of Myth but
have been unable to get nuvexport working, I also tried mythnuv2mkv but
I haven't been able to find a solution that works smoothly on debian yet.

Can someone point me in the right direction, preferably toward a
solution that can schedule and do bulk archive exports, not one episode
at a time.

Thanks
Brendan