the PUID GUID 1000 corresponds to the root on PI, you can either make an #id in your pi shell to see which GUID and PUID uses docker for me it's 995 I changed in the ENV configuration in container , and I no longer have any worries when the container is launched
the PUID GUID 1000 corresponds to the root on PI, you can either make an #id in your pi shell to see which GUID and PUID uses docker for me it's 995 I changed in the ENV configuration in container , and I no longer have any worries when the container is launched