s0lve.it is a browser-based QR code generator supporting 2D and 3D printable formats (.3MF/.STL) with Reed-Solomon error correction, batch processing, customization options, and offline privacy. It encodes data up to 4,296 alphanumeric characters and offers 3D printing workflows including raised relief, flush inlay, and debossed designs.
A peer-to-peer file storage system for Tailscale/Headscale meshes that encrypts files with AES-256-GCM, splits them into Reed-Solomon shards (5 data + 2 parity), and distributes shards across online peers. Files are restored via portable .dstore manifests that require only 5 of 7 shards to be reachable.