Wow, thanks a lot for this thorough answer. I see I need to dust off the old employment contract and see what it says - I've had an assumption that any ownership my previous employer has pertains only to any discovery that could be commercialized through patents and spin-offs - this is not that. This work is academic research, and I was required to make any publication openly accessible (with CC-licenses) due to how the work was funded, and this code base contains all the analysis tools that underpin these publications.