2 more impressive contributions from EPP.
Check these highly interesting publications from
Enrique Asin García on "Genetic Safeguards and Safety-by-design" https://www.sciencedirect.com/science/article/abs/pii/S0167779920301104
and Christos Batianis on CRISPRi for P. putida https://sfamjournals.onlinelibrary.wiley.com/doi/full/10.1111/1751-7915.13533?af=R.