Cloudflare R2
Cloudflare's S3-compatible object storage with zero egress fees. VULK uses R2 to store generated assets (videos, 3D models, images, exported ZIPs) and serve them globally from the Cloudflare edge.
Cloudflare R2
Cloudflare R2 is an S3-compatible object storage service distinguished by one fact: it charges nothing for egress traffic. AWS S3 charges roughly $0.09 per GB for data leaving the bucket; R2 charges $0. The API surface is intentionally identical to S3 (PutObject, GetObject, presigned URLs, multipart upload) so existing tooling — aws s3 CLI, @aws-sdk/client-s3, boto3 — works unchanged. Storage is $0.015/GB/month and Class A operations are $4.50 per million.
VULK stores all generated heavy assets — AI video backgrounds, GLB 3D models, generated images, exported project ZIPs, deploy artifacts — in R2 buckets fronted by the Cloudflare CDN. Because egress is free, every preview iframe and every embedded video can pull the asset directly from R2 without driving up infrastructure cost. Signed URLs are used for private project exports.
Rapier Physics
A Rust-based physics engine compiled to WebAssembly — used inside React Three Fiber via @react-three/rapier — for rigid-body, collision, and constraint simulation in browser 3D scenes. VULK uses Rapier when a project needs interactive physics.
AWS KMS Envelope Encryption
A two-layer encryption pattern where each piece of data is encrypted with a unique data key, and that data key is itself encrypted by a master key in AWS KMS. Combines KMS's audit / rotation guarantees with the throughput of local encryption.