Cyanobacteria, ancient photosynthetic prokaryotes capable of directly converting CO₂ and solar energy into various chemicals through photosynthesis, have drawn great attention as a photosynthetic biomanufacturing platform. To enhance the production of various chemicals, multi-dimensional engineering strategies spanning genetic modification to process optimization have been developed. Notably, stress activation strategies, characterized by their strong controllability and the absence of transgenic risks, have recently attracted significant atte...