BetterDiscord is a client modification for Discord that injects into the Electron app to provide a plugin and theme system, custom CSS editor, addon store, updater, and developer tools. The architecture is a monolith within the Discord client, structured as three packages: injector (main process), preload, and renderer. Key entry points include the main process (`src/electron/main/index.ts`), preload script (`src/electron/preload/index.ts`), and renderer initialization (`src/betterdiscord/index.ts`). Data flows involve IPC between main and renderer, webpack module interception for patching Discord's React components, file system access for addons and settings, and GitHub API for updates. External dependencies include Electron, React, Monaco Editor, lucide-react, and react-spring. The codebase is well-structured with TypeScript, has tests, and exposes a comprehensive API (`BdApi`) for plugin developers. However, it heavily relies on Discord's internal webpack modules and hardcoded module IDs, making it brittle and requiring frequent updates as Discord changes. The project is actively maintained with recent commits and responsive issue triage.
ElegantFin is a comprehensive CSS theme for the Jellyfin media server, providing a modern, dark UI overhaul inspired by Jellyseerr. It is delivered as a single CSS import and relies entirely on CSS custom properties (design tokens) for customization, allowing users to adjust colors, layout, and visibility toggles. The theme is built with PostCSS and includes optional add-on stylesheets for custom media covers and third-party plugin support. The codebase consists of versioned, monolithic CSS files that override Jellyfin's default styling across desktop, mobile, and TV layouts. It is not an application backend or data pipeline; it is a pure client-side presentation layer. The theme demonstrates strong CSS craftsmanship through extensive use of modern selectors (`:has()`, `@container`, `@supports`), responsive card grids, and design token abstraction, though it suffers from duplication across versions and reliance on external CDN resources.