OpenWrt: Open Source Router Operating System for Customization & Flexibility

OpenWrt is an open-source Linux operating system designed for embedded devices such as routers and access points. It's a modular system that allows users to customize and configure their devices to suit their needs. OpenWrt supports a wide range of hardware platforms and provides a web-based interface for easy configuration and management. It's known for its stability, security, and flexibility and is widely used in both home and enterprise networks. OpenWrt is free to use and distribute under the GNU General Public License.