StickerForge Preview is a Spring Boot API for a custom sticker shop. Customers upload artwork, add a short caption, and a background worker renders a shareable PNG proof for their cart using ImageMagick. Review how the multipart caption field is carried into the preview rendering command.

ReplyForge is a customer-support SaaS where agents craft reusable "canned response" templates that auto-fill customer and order data, like "Hi {customer.name}, order {order.id} shipped." The rendering service merges live data into agent-authored templates before sending replies. Review how a saved template gets turned into the final message text and consider what an agent (or a compromised agent account) could place inside a template.

MediClip Stream is a Spring WebFlux transcription API used by clinics to upload voice notes for patient charts. The upload path passes Netty-backed buffers into an asynchronous speech-to-text queue. Review the multipart chunk handoff code and determine whether each buffer remains valid until the worker reads it.