A practical, security-conscious guide to Linux ownership, modes, groups, ACLs, umask, Docker UID and GID mapping, network shares, SELinux, AppArmor, and permission troubleshooting.
Separating storage from application compute forced me to define ownership, permissions, failure boundaries, and recovery instead of treating shared disks as a transparent dependency.
Separating application compute from authoritative storage made my homelab easier to rebuild, troubleshoot, and change without pretending a second machine is automatic redundancy.
A healthy container and an empty media library exposed a quieter failure underneath: the path existed, but the filesystem I expected was not mounted there.
How inconsistent Docker mounts create failed imports, duplicate copies, broken hardlinks, and misleading permission errors across a media automation stack.
A practical architecture and operations handbook for planning a homelab from scratch: workloads, hardware, storage, networking, platforms, security, monitoring, backups, recovery, and the order to build them in.
A practical, start-to-finish guide to deploying, securing, accelerating, backing up, upgrading, and troubleshooting Jellyfin 12 on Ubuntu Server with Docker Compose.