Praveen Pali details mobile architecture for OTT scaling to 100M users

The shift toward native-first media layers reflects a growing industry consensus that cross-platform frameworks like React Native often struggle with low-level video optimizations and DRM stability at massive scale. By isolating the playback engine from the UI, engineers can maintain high-performance streaming without sacrificing the development speed of shared codebases for standard features. This approach addresses the fragmentation of the streaming ecosystem, where device-specific media APIs remain the primary bottleneck for reliability. As platforms prepare for higher concurrent peaks, the focus will shift toward how effectively these hybrid architectures can implement automated CDN failover and edge caching. Watch for whether major streamers adopt this 'native-core' hybrid model to reduce technical debt while scaling global live events.

The technical patterns Pali describes align with what major streaming infrastructure providers have been documenting throughout 2026. According to dacast.com, the current consensus for scalable OTT platforms separates architecture into two planes: a data plane handling video delivery and a control plane managing identity, entitlements, ads, billing, and analytics. Dacast's 2026 guide recommends implementing LL-HLS when near-live latency matters and reserving WebRTC exclusively for true interactivity, a distinction that mirrors Pali's framework. The guide also emphasizes that multi-CDN steering should incorporate geo-based, health-based, and cost-based routing simultaneously rather than relying on a single failover trigger.

On the delivery side, sharecode.in provides a detailed breakdown of how live sports events reach 100 million concurrent screens. The architecture relies on CDN edge caching as the fundamental scaling mechanism: a segment is cached once at an edge server and served to subsequent viewers without returning to origin. For the largest fixtures, multi-CDN is described not as an optimization but as a necessity—the difference between a brief quality dip and a full outage during peak moments. The piece notes that Low-Latency HLS and chunked CMAF have pulled delivery latency down to roughly 2–5 seconds while preserving the cacheable HTTP infrastructure that makes CDN scaling possible. Standard HLS/DASH still carries 20–45 seconds of latency, making it unsuitable for live sports where near-real-time delivery is expected.

Inventcolabssoftware.com adds a cost perspective relevant to Pali's 100M-user target: building a streaming platform for 1 million-plus concurrent users typically costs 3–6 times as much in infrastructure as a 100K-user platform, driven primarily by redundancy, multi-region failover, and origin shielding requirements. The firm notes that multi-CDN delivery and adaptive bitrate streaming become non-negotiable once concurrency crosses roughly 50,000 viewers. Their guidance also highlights that chat, reactions, and gifting systems must be architected to fail before video delivery does—a principle that separates interactive layers from the core playback pipeline.

The DRM landscape Pali references remains dominated by three systems: Widevine for Android and Chrome, PlayReady for Windows and Xbox, and FairPlay for Apple devices, as documented across multiple 2026 infrastructure guides. The Encrypted Media Extensions API serves as the browser-side bridge between encrypted streams and device-level secure decode paths. For platforms targeting 100 million users across heterogeneous device fleets, supporting all three DRM systems simultaneously remains a baseline requirement rather than an optional enhancement.