Add Devcontainer

.devcontainer/devcontainer.json

@@ -0,0 +1,20 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/typescript-node
+{
+	"name": "Node.js & TypeScript",
+	"image": "mcr.microsoft.com/devcontainers/base:ubuntu",
+	"features": {
+		"ghcr.io/devcontainers/features/git-lfs:1": {
+			"autoPull": true,
+			"version": "latest"
+		},
+		"ghcr.io/devcontainers/features/node:1": {}
+	},
+	"postCreateCommand": ". ${NVM_DIR}/nvm.sh && nvm install && nvm use"
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

.github/dependabot.yml

@@ -1,6 +1,20 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for more information:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+# https://containers.dev/guide/dependabot
+
 version: 2
 updates:
-    - package-ecosystem: "npm"
-      directory: "/"
-      schedule:
-          interval: "daily"
+
+# Maintain dependencies for npm
+- package-ecosystem: "npm"
+  directory: "/"
+  schedule:
+    interval: weekly
+
+# Maintain dependencies for devcontainers
+- package-ecosystem: devcontainers
+  directory: "/"
+  schedule:
+    interval: weekly

.nvmrc

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+v20.11.1