Add some default extensions to devcontainer

Signed-off-by: Nicolas Bock <[email protected]>

Author: nicolasbock

.devcontainer/devcontainer.json

@@ -1,20 +1,15 @@
-// For format details, see https://aka.ms/devcontainer.json. For config options, see the
-// README at: https://github.com/devcontainers/templates/tree/main/src/docker-existing-dockerfile
 {
 	"image": "nicolasbock/bml:latest",
-
-	// Features to add to the dev container. More info: https://containers.dev/features.
-	// "features": {},
-
-	// Use 'forwardPorts' to make a list of ports inside the container available locally.
-	// "forwardPorts": [],
-
-	// Uncomment the next line to run commands after the container is created.
-	// "postCreateCommand": "cat /etc/os-release",
-
-	// Configure tool-specific properties.
-	// "customizations": {},
-
-	// Uncomment to connect as an existing user other than the container default. More info: https://aka.ms/dev-containers-non-root.
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"fortran-lang.linter-gfortran",
+				"GitHub.vscode-pull-request-github",
+				"ms-vscode.cmake-tools",
+				"ms-vscode.cpptools",
+				"twxs.cmake"
+			]
+		}
+	},
 	"remoteUser": "ubuntu"
 }