Jellyfin ran as user 1000:1000 inside a rootless user namespace, where host
uid 1000 maps to container uid 0 — the pinned uid is unmapped, so /config/log
creation EACCES'd and the service SIGSEGV'd on boot. Container root (= host
dank) is correct under rootless podman; group_add 992 (render) still maps via
the userns group map, so GPU access is preserved.
Readarr: lscr.io/linuxserver/readarr:latest does not exist — LSIO ships only
arch-prefixed nightly/version tags for readarr (verified against the ghcr tag
API). Pin amd64-1.0.980, the newest stable tag.