devcontainer: inital config

This adds a devcontainer config for devs to have an easy way to get a working dev environment.

.devcontainer/Dockerfile

@@ -0,0 +1,3 @@
+FROM mcr.microsoft.com/devcontainers/typescript-node:1-18-bookworm
+# Install the xz-utils package
+RUN apt-get update && apt-get install -y libpango1.0-dev

.devcontainer/devcontainer.json

@@ -0,0 +1,33 @@
+// 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": "Pybricks Code",
+    // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+    "build": {
+        // Path is relative to the devcontainer.json file.
+        "dockerfile": "Dockerfile"
+    },
+
+    // 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": [],
+
+    // Use 'postCreateCommand' to run commands after the container is created.
+    "postCreateCommand": "yarn",
+
+    // Configure tool-specific properties.
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "dbaeumer.vscode-eslint",
+                "esbenp.prettier-vscode",
+                "psioniq.psi-header"
+            ]
+        }
+    }
+
+    // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+    // "remoteUser": "root"
+}

.github/dependabot.yml

@@ -1,3 +1,9 @@
+# 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
@@ -9,3 +15,7 @@ updates:
   - dependency-name: "@types/node"
     versions:
     - ">= 19.a"
+ - package-ecosystem: "devcontainers"
+   directory: "/"
+   schedule:
+     interval: weekly

.vscode/settings.json

@@ -12,7 +12,7 @@
         "editor.defaultFormatter": "esbenp.prettier-vscode"
     },
     "editor.codeActionsOnSave": {
-        "source.fixAll.eslint": true
+        "source.fixAll.eslint": "explicit"
     },
     "eslint.validate": [
         "javascript",

CONTRIBUTING.md

@@ -16,6 +16,8 @@ will do nice things like automatically format the code for you.
 
 These are the required software tools you need to install on your computer.
 
+Alternatly, you can use a devcontainer locally via Docker or using GitHub Codespaces.
+
 ### Node.js
 
 We are using [Node.js][node] v18.x. We recommend using a tool such as [asdf][asdf]