This action research study investigates the efficacy of integrating indigenous conflict resolution practices with formal peacebuilding frameworks in South Sudan. Conducted in partnership with local peace committees in Central Equatoria, the research employs iterative cycles of planning, action, observation, and reflection to co-design and implement a hybrid mediation model. The study provides concrete evidence on how participatory methodologies can enhance local ownership of peace processes, documents specific challenges related to gender inclusion and resource constraints, and offers critical reflections on the role of the researcher in fragile states. The findings contribute to debates on decolonising peace studies and offer practical insights for policymakers and practitioners engaged in sustainable conflict transformation.