$ show fastfetch-cli/fastfetch
Fastfetch is a high-performance, cross-platform system information fetcher designed for the command line. It detects and displays hardware (CPU, GPU, memory, disks, battery, displays, network, Bluetooth, etc.) and software (OS, kernel, desktop environment, window manager, packages, processes, etc.) with extensive customization options including ASCII art logos, images, and JSON output. The architecture is monolithic with a modular detection system: each subsystem (e.g., GPU, battery) has a platform-agnostic header and multiple platform-specific implementation files (Linux, macOS, Windows, BSDs, Haiku, Solaris, Android). The core common library provides dynamic string buffers (FFstrbuf), generic lists (FFlist), dynamic library loading helpers, file I/O, configuration parsing, and formatting utilities. Build configuration is CMake-based with optional dependencies (ImageMagick, libva, Lua, etc.). The codebase is written in modern C (C23) and demonstrates strong engineering practices with consistent patterns for module initialization, option parsing, JSON config generation, and error handling. It is actively maintained with frequent releases and broad platform support.
The LLM identified 2 files worth highlighting for reuse:
Provides macros FF_LIBRARY_LOAD, FF_LIBRARY_LOAD_SYMBOL, and FF_LIBRARY_LOAD_SYMBOL_VAR for dynamically loading shared libraries at runtime. These macros reduce boilerplate by handling dlopen/dlsym, versioned library names, and error reporting. The pattern is self-contained and can be extracted into any C project that needs optional dependency loading.
Implements parsing of EDID (Extended Display Identification Data) blocks to extract display name, physical resolution, serial number, and HDR compatibility. The functions are standalone and operate on raw EDID buffers, making them reusable for any project that needs to decode monitor EDID data from sysfs, IOKit, or other sources.