a commercial product along the same lines is KOMP https://komp.family/en/. We had it to communicate with our elderly grandparents until they died. Its a bit like a senior accessible social network feed for the family, including its dynamics, because the app shows what is being shown to everybody else of the family. In that regard it's a disadvantage you have some of the same dynamics going on. You dont only communicate to the grandparents, but also to the (extended) family.
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