SIG stands for Special Interest Group. To better manage and develop the technical ecosystem, the community is organized into different SIGs. Each SIG consists of one or more related technical themes, and the core members of the SIG jointly lead the governance of the SIG and promote the output of technical achievements to become part of the community distribution. Enterprises and developers are welcome to join SIGs and participate in contributions. If there is no technical direction you want to contribute to, you can apply to establish a new SIG group.