Implements a generic event listener system with a `Listeners` struct that uses a pending queue to avoid deadlocks when emitting events while holding a lock. Listeners are stored in a `HashMap` keyed by event type, and each listener can be registered with a target filter. The `Pending` queue allows safe emission from within listener callbacks by deferring delivery. This pattern is reusable for any event-driven system requiring safe reentrant emission.

Provides `RuntimeAuthority` for IPC access control using resolved capabilities. It maintains a `ScopeManager` that caches deserialized scope objects and supports glob-based matching for windows, webviews, and origins. `CommandScope` and `GlobalScope` implement `CommandArg` for automatic injection into commands. This is a self-contained, well-abstracted authorization module that could be extracted for any system needing fine-grained, capability-based permission checks.

Handles compile-time embedding of frontend assets into the binary. It compresses assets using Brotli, generates SHA-256 hashes for CSP (Content Security Policy) nonces, and produces a `Cached` struct with checksums for cache busting. The module is self-contained and demonstrates advanced use of Rust's proc-macro and build-script infrastructure. The pattern is reusable for any framework needing to embed and serve static assets with integrity verification.

Implements a `ResourceTable` that manages Rust objects accessible from JavaScript via numeric IDs (similar to file descriptors). Resources implement the `Resource` trait and are stored in a type-erased map with automatic cleanup on drop. This pattern is reusable for any system that needs to expose native objects to a scripting environment with safe lifecycle management.