Multi-protocol media packaging

Design the packaging/origin layer that takes encoded renditions and serves both HLS and DASH to a fragmented device ecosystem (iOS wants HLS, many TVs/Android want DASH, some need different segment durations), without storing N duplicate copies of the media per protocol. Storage and origin egress are major costs, and a new device family with its own quirks shows up regularly. Design how you store the media and generate the manifests, and how you minimize duplicated bytes.