["Let's decide together": facilitating advance directives in nursing homes and long-term care facilities].

The formalization of advance directives remains uncommon in institutions, hampered by insufficient information, the taboo surrounding the end of life, and communication barriers. "Décidons ensemble" (Let's decide together), a co-constructed educational tool (a board game structured around six themes and online modules), aims to reduce these barriers. An exploratory phase in residential care facilities for dependent elderly people and long-term care units is assessing feasibility, acceptability, and feedback. It is an ethical tool that can be replicated and adapted to other care contexts.