Lancémonos
Video course platform with automatic AI transcription, semantic topic analysis, intelligent search (Algolia), and HLS streaming that solves memory issues with long videos. 276+ videos processed in production.
Overview
How the system works
Lancémonos Nomás transforms hundreds of hours of educational video into indexed, searchable, and accessible content. An AWS Step Functions pipeline processes each video: extracts audio, transcribes in parallel with AI, analyzes topics and keywords with specialized AI models, generates formatted content, and converts to HLS for efficient streaming. Algolia syncs transcriptions and topics for instant search in Spanish. HLS streaming solved a critical issue: 30+ minute videos caused memory crashes on 4GB devices (500MB+ progressive video vs 36-85MB with HLS). Admin panel for content management with drag-drop and atomic deletion.
The Challenge
276+ course videos unindexed and unsearchable. Long videos (45-90 min) caused memory-related crashes on budget devices. Teachers received repetitive queries that existing content already answered.
The Solution
Step Functions pipeline: download video → extract audio → parallel AI transcription in chunks → semantic topic and keyword analysis with AI → HLS conversion with codec detection → HTML generation → Algolia sync. HLS streaming keeps memory stable on any device. Admin manages content with drag-drop reordering.
Results
276+ videos processed in production (556GB). Average search < 200ms with Algolia. HLS streaming eliminated crashes on low-memory devices. Engagement +300%. Costs optimized: sa-east-1 → us-east-1 migration saved 58% ($126/year). S3 lifecycle rules reduce storage costs 65-71%.
Screenshots
Discover the project
Technical Architecture
Technology Stack
Key Benefits
Improvements after implementation
Videos processed
276+ course videos (556GB) processed in production with an AI pipeline that transcribes, extracts topics and keywords, and generates HTML automatically in minutes instead of hours of manual work.
Algolia search
Instant semantic search with average responses under 200ms, citing the exact video and moment where the content appears, instead of manually reviewing classes over 2 hours long.
Indexing time
Student retention +300% with same teaching resources. 40+ hours/month saved on repetitive teacher queries. AWS cost optimized to ~$7-8/month after region migration.
“CloudForgeAI transformed our educational platform by implementing an AI system that automatically processes our videos. The intelligent search answers queries citing exact videos where the required content is shown, elevating the learning experience and increasing student retention by 300%.”
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