Palmier Pro is a professional macOS video editing application (NLE) built with SwiftUI, AppKit, and AVFoundation. It provides a full timeline editor with multi-track support, keyframe animation, compositing via Core Image and custom Metal kernels, and export to H.264/H.265/ProRes/XML/FCPXML. The application is distinguished by deep AI integration: an in-app agent and MCP server allow external AI assistants (Claude, Cursor, Codex) to edit timelines, apply effects, generate media, and manage projects via structured tools. On-device ML models provide beat detection (Beat This) and semantic visual search (SigLIP2), while cloud backends (Convex, Clerk) handle AI generation, transcription, and account/credit management. The codebase is well-structured with extensive test coverage, reusable utilities (DiskCache, AsyncSemaphore, EffectRegistry), and a clean separation of concerns in the compositing and audio analysis pipelines. It is a commercial product with localization in 20+ languages, Sparkle auto-updates, and Sentry telemetry.