This is a multi-platform TypeScript library for programmatically controlling Elgato Stream Deck devices and the Corsair Galleon K100 keyboard. It provides a unified API over three distinct transport layers: USB HID via `node-hid` (Node.js), WebHID (browser), and TCP/IP (network-connected devices like the Stream Deck Studio and Network Dock). The architecture decouples hardware-specific details behind a service-oriented core: `PropertiesService`, `InputService`, `ButtonsLcdDisplayService`, `LcdSegmentDisplayService`, and `EncoderLedService` are injected into a `StreamDeckBase` class, allowing support for 15+ models (Original, Mini, XL, Plus, Plus XL, Neo, Pedal, Studio, etc.) with minimal duplication. Image processing is modular, with pluggable encoders (JPEG, bitmap) and header generators for different firmware generations. The `PreparedBuffer` pattern enables pre-computing and caching of image writes. The codebase is well-structured as a monorepo with separate packages for core logic, Node.js transport, WebHID transport, TCP transport, and a browser demo. Unit tests use Jest with snapshot testing for HID report payloads. The library is actively maintained, with recent commits, CI pipelines, and automated release-please workflows.
The OpenCAL firmware is a Python application designed to control a Computed Axial Lithography (CAL) 3D printer running on a Raspberry Pi 5. It orchestrates hardware components including a stepper motor (via Pololu Tic T249 or similar), LED array, projector (using mpv), camera (using picamera2), LCD display, and rotary encoder. Users interact via a menu-driven LCD interface to select video files from a USB drive and initiate print jobs, during which the system coordinates motor rotation, LED illumination, video projection, and image capture. The application follows a modular architecture with clear separation of concerns: GUI logic in `gui/`, hardware abstraction in `hardware/`, and configuration management in `utils/`. The LCD GUI implements a state machine for menu navigation, while the hardware layer uses a strategy pattern to support multiple stepper motor drivers (Tic USB, step/dir, UART, and a mock for testing). Configuration is managed through typed dataclasses loaded from a JSON file, allowing easy adaptation to different hardware setups. Key strengths include the reusable stepper motor abstraction layer, which cleanly separates the control interface from driver-specific implementations, and the configuration system that provides a robust, typed interface to hardware parameters. The USB media handler offers a simple, self-contained utility for managing media files on removable storage. The system is actively maintained and targets the Raspberry Pi 5 platform with specific hardware dependencies.
Twinkle Tray is a Windows desktop application for managing monitor brightness and display settings. It uses Electron for the main process and React for the UI, communicating with monitors via DDC/CI, WMI, and software gamma ramps. The application features a system tray icon, brightness panel, settings window, and supports automatic adjustments based on time of day or ambient light. It relies on numerous Windows-specific native addons for low-level hardware access, which introduces maintenance risks but provides deep hardware integration.
A La Carchy is a two-panel TUI (Terminal User Interface) application for Omarchy Linux that serves as a system debloater and optimizer. It provides an interactive interface for removing preinstalled applications and web apps, configuring system settings (keybindings, display, appearance, etc.), managing ASUS ROG hardware controls, applying themes from wallpaper colors, installing community themes, and backing up/restoring configurations. The architecture is a single bash script that implements a sophisticated terminal UI with guided dialogs for complex configurations, direct modification of system configuration files with safety features like backups and confirmations, and integration with Omarchy-specific utilities and standard Linux tools.