Setup

• You'll need docker and nodejs (preferably v20 LTS)
• Install deps. via npm i in /lambdas and /server
• .env format -
  • /lambdas/.env

    REDIS_USERNAME=""
    REDIS_PASSWORD=""
    REDIS_HOST=""
    DATABASE_URI=""
    S3_REGION=""
    S3_BUCKET_NAME=""
    ACCESS_KEY_ID=""
    SECRET_ACCESS_KEY=""
    SUBNET_1=""
    SUBNET_2=""
    SUBNET_3=""
    SECURITY_GROUP=""
    ECS_ARN=""

  • /server/.env

    JWT_ACCESS_TOKEN_SECRET=""
    JWT_REFRESH_TOKEN_SECRET=""
    S3_REGION=""
    S3_BUCKET_NAME=""
    AWS_ACCESS_KEY_ID=""
    AWS_SECRET_ACCESS_KEY=""
    DATABASE_URI=""
    REDIS_USERNAME=""
    REDIS_PASSWORD=""
    REDIS_HOST=""
    PORT="9191"
    CLOUDFRONT_URL=""
    CLOUDFRONT_PUBLIC_KEY_ID=""
    CLOUDFRONT_PRIVATE_KEY="" # raw or base64 PEM; falls back to keys/private_key.pem locally
    RESEND_API_KEY=""
    CLIENT_APP_URL="http://localhost:3000" # frontend URL — drives CORS + email links

  • /web/.env (frontend)

    NEXT_PUBLIC_API_BASE_URL="http://localhost:9191/api/v1"

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Deployment

• Frontend (/web, Next.js) and API (/server, Express) deploy as two apps on Coolify, each built from its own Dockerfile. Production: web → transcode.pixly.sh, API → api.transcode.pixly.sh.
• The transcoding worker (/transcoding-img) runs on ECS Fargate; the trigger lives in /lambdas.

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Architecture