SWITCHER self-integration into ROSA26 locus

We present a novel genetic switch we term SWITCHER based on a floxed wild-type Cre-construct representing a CRISPR-inducible and self-limiting kill switch. By leveraging CRISPR/Cas12a-mediated crRNA-array maturation, we showcase SWITCHER's dual role - not just as a recombinase but as a CRISPR switch, capable of orchestrating distinct Cas12a/crRNA-encoded programs.