Indonesia has been severely and repeatedly hit by tsunamis, and will be again in the future. We will co-develop, with local stakeholders and experts, an innovative end-to-end catastrophe model of Indonesian tsunamis on the open platform Oasis. We will create regional models of all major sources of tsunamis generated by earthquakes over the entire coast of Indonesia, as well as potential tsunamigenic landslide sources triggered by earthquakes and volcanoes since these can have severe local impacts. We will produce stochastic hazard footprints for all these events by developing, and applying, bespoke statistical tools of Uncertainty Quantification. New vulnerability functions for the resilience of infrastructure such as ports and for livelihood of populations will be produced. This open model will be of use to both Government and the insurance industry, and enable modern disaster risk financing for Indonesia.