In Sweden, a decade ago, digitalized co-production emergency response initiatives of a hybrid bottom-up type emerged. They targeted local efforts to recruit groups of citizens to provide first respons for other citizens in accidents. Benefits in terms of shorter response times, saved lives, reduced human suffering, and material damage have been demonstrated. Recently, national authorities recognized the need to support the initiatives to expand to all rescue services, and the potential to scale up the use of citizen first responders, also in large-scale crisis management and as part of civil preparedness. Previous research has studied the initiatives and developed three models aimed at supporting the implementation of digitalized co-production. In this study, we report from the initial phase of the nationwide effort, carry out an initial evaluation, and present revised models. The models are adapted to rural versus urban settings and complemented with a model providing national support. Information and communication technology plays a crucial role in all of them. We define the hybrid type as interdependent digitalized co-production where government citizen sourcing is not direct but includes the intermediate level of the rescue services. Implications are discussed, e.g., on how to achieve a balance between centralization and decentralization.