Under the repository name, use the Code drop-down menu, and in the Codespaces tab, click New codespace.
If you don’t see this option, Codespaces isn't available for your project. See Access to Codespaces for more information.
You can customize your codespace by adjusting the amount of vCPUs and RAM, adding dotfiles to personalize your environment, or by modifying the tools and scripts installed.
Codespaces uses a file called
devcontainer.json to store configurations. On launch, Codespaces uses the file to install any tools, dependencies, or other set up that might be needed for the project. For more information, see "Introduction to dev containers."