Initial commit

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "monthly"

.github/steps/-step.txt

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+0

.github/steps/0-welcome.md

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+<!-- readme -->

.github/steps/1-first-codespace.md

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+<!--
+  <<< Author notes: Step 1 >>>
+  Choose 3-5 steps for your course.
+  The first step is always the hardest, so pick something easy!
+  Link to docs.github.com for further explanations.
+  Encourage users to open new tabs for steps!
+-->
+
+## Step 1: Create your first codespace and push code
+
+_Welcome to "Develop code using GitHub Codespaces and Visual Studio Code"! :wave:_
+
+**What's the big deal about using a codespace for software development?** A codespace is a development environment that's hosted in the cloud. You can customize your project for GitHub Codespaces by committing configuration files to your repository (also known as configuration-as-code), which creates a repeatable codespace configuration for all users of your project. Each codespace you create is hosted by GitHub in a Docker container that runs on a virtual machine. You can choose the type of machine you want to use depending on the resources you need.
+
+GitHub offers a range of features to help your development team customize a codespace to reach peak configuration and performance needs. For example, you can:
+
+- Create a codespace from your repository.
+- Push code from the codespace to your repository.
+- Use VS Code to develop code.
+- Customize the codespace with custom images.
+- Manage the codespace.
+
+To begin developing using GitHub Codespaces, you can create a codespace from a template or from any branch or commit in a repository. When you create a codespace from a template, you can start from a blank template or choose a template suitable for the work you're doing.
+
+### :keyboard: Activity: Start a codespace
+
+**We recommend opening another browser tab to work through the following activities so you can keep these instructions open for reference.**
+
+1. Start from the landing page of your repository.
+1. Click the green **Code** button located in the middle of the page.
+1. Select the **Codespaces** tab in the box that pops up and then click the **Create codespace on main** button.
+
+   > Wait about 2 minutes for the codespace to spin itself up.
+   > **Note**: It's a virtual machine spinning up in the background.
+
+1. Verify your codespace is running. The browser should contain a VS Code web-based editor and a terminal should be present such as the below:
+   ![codespace1](https://user-images.githubusercontent.com/26442605/207355196-71aab43f-35a9-495b-bcfe-bf3773c2f1b3.png)
+
+### :keyboard: Activity: Push code to your repository from the codespace
+
+1. From inside the codespace in the VS Code explorer window, select the `index.html` file.
+1. Replace the **h1** header with the below:
+
+   ```html
+   <h1>Hello from the codespace!</h1>
+   ```
+
+1. Save the file.
+   > **Note**: The file should autosave.
+1. Use the VS Code terminal to commit the file change by entering the following commit message:
+
+   ```shell
+   git commit -a -m "Adding hello from the codespace!"
+   ```
+
+1. Push the changes back to your repository. From the VS Code terminal, enter:
+
+   ```shell
+   git push
+   ```
+
+1. Your code has been pushed to your repository!
+1. Switch back to the homepage of your repository and view the `index.html` to verify the new code was pushed to your repository.
+1. Wait about 20 seconds then refresh this page (the one you're following instructions from). [GitHub Actions](https://docs.github.com/en/actions) will automatically update to the next step.

.github/steps/2-custom-image.md

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+<!--
+  <<< Author notes: Step 2 >>>
+  Start this step by acknowledging the previous step.
+  Define terms and link to docs.github.com.
+-->
+
+## Step 2: Add a custom image to your codespace!
+
+_Nice work! :tada: You created your first codespace and pushed code using VS Code!_
+
+You can configure the development container for a repository so that any codespace created for that repository will give you a tailored development environment, complete with all the tools and runtimes you need to work on a specific project.
+
+**What are development containers?** Development containers, or dev containers, are Docker containers that are specifically configured to provide a fully featured development environment. Whenever you work in a codespace, you are using a dev container on a virtual machine.
+
+A dev container file is a JSON file that lets you customize the default image that runs your codespace, VS code settings, run custom code, forward ports and much more!
+
+Let's add a `devcontainer.json` file and add a custom image.
+
+### :keyboard: Activity: Add a .devcontainer.json file to customize your codespace
+
+1. Navigating back to your **Code** tab of your repository, click the **Add file** drop-down button, and then click `Create new file`.
+1. Type or paste the following in the empty text field prompt to name your file.
+
+   ```
+   .devcontainer/devcontainer.json
+   ```
+
+1. In the body of the new **.devcontainer/devcontainer.json** file, add the following content:
+
+   ```jsonc
+   {
+     // Name this configuration
+     "name": "Codespace for Skills!",
+     // Use the base codespace image
+     "image": "mcr.microsoft.com/vscode/devcontainers/universal:latest",
+
+     "remoteUser": "codespace",
+     "overrideCommand": false
+   }
+   ```
+
+1. Click **Commit changes** and then select **Commit changes directly to the `main` branch**.
+1. Create a new codespace by navigating back to the **Code** tab of your repository.
+1. Click the green **Code** button located in the middle of the page.
+1. Click the **Codespaces** tab on the box that pops up.
+1. Click the **Create codespace on main** button OR click the `+` sign on the tab. This will create a new codespace on the main branch. (Notice your other codespace listed here.)
+
+   > Wait about **2 minutes** for the codespace to spin itself up.
+
+1. Verify that your new codespace is is running, as you did previously.
+
+   Note the image being used is the default image provided for GitHub Codespaces. It includes runtimes and tools for Python, Node.js, Docker, and more. See the full list here: https://aka.ms/ghcs-default-image. Your development team can use any custom image that has the necessary prerequisites installed. For more information, see [codespace image](https://aka.ms/configure-codespace).
+
+1. Wait about 20 seconds then refresh this page (the one you're following instructions from). [GitHub Actions](https://docs.github.com/en/actions) will automatically update to the next step.

.github/steps/3-customize-codespace.md

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+<!--
+  <<< Author notes: Step 3 >>>
+  Start this step by acknowledging the previous step.
+  Define terms and link to docs.github.com.
+-->
+
+## Step 3: Customize your codespace!
+
+_Nice work! :tada: You created a codespace with a custom image!_
+
+You can customize your codespace by adding VS code extensions, adding features, setting host requirements, and much more.
+
+Let's customize some settings in the `devcontainer.json` file!
+
+### :keyboard: Activity: Add customizations to the `devcontainer` file
+
+1. Navigate to the `.devcontainer/devcontainer.json` file.
+1. Add the following customizations to the body of the file before the last `}`.
+
+   ```jsonc
+    ,
+    // Add the IDs of extensions you want installed when the container is created.
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "GitHub.copilot"
+            ]
+        },
+        "codespaces": {
+            "openFiles": [
+                "codespace.md"
+            ]
+        }
+    }
+   ```
+
+1. Click **Commit changes** and then select **Commit changes directly to the `main` branch**.
+1. Create a new codespace by navigating to the landing page of your repository.
+1. Click the **Code** button located in the middle of the page.
+1. Click the **Codespaces** tab on the box that pops up.
+1. Click the **Create codespace on main** button.
+
+   > Wait about **2 minutes** for the codespace to spin itself up.
+
+1. Verify your codespace is running, as you did previously.
+1. The `codespace.md` file should show up in the VS Code editor.
+1. The `copilot` extension should show up in the VS Code extension list.
+
+   This will add a VS Code extension as well as open a file on start up of the codespace.
+
+Next lets add some code to run upon creation of the codespace!
+
+### :keyboard: Activity: Execute code upon creation of the codespace
+
+1. Edit the `.devcontainer/devcontainer.json` file.
+1. Add the following postCreateCommand to the body of the file before the last `}`.
+
+   ```jsonc
+    ,
+    "postCreateCommand": "echo '# Writing code upon codespace creation!'  >> codespace.md"
+   ```
+
+1. Click **Commit changes** and then select **Commit changes directly to the `main` branch**.
+1. Create a new codespace by navigating to the landing page of your repository.
+1. Click the **Code** button located in the middle of the page.
+1. Click the **Codespaces** tab on the box that pops up.
+1. Click the **Create codespace on main** button.
+
+   > Wait about **2 minutes** for the codespace to spin itself up.
+
+1. Verify your codespace is running, as you did previously.
+1. Verify the `codespace.md` file now has the text `Writing code upon codespace creation!`.
+1. Wait about 20 seconds then refresh this page (the one you're following instructions from). [GitHub Actions](https://docs.github.com/en/actions) will automatically update to the next step.

.github/steps/4-personalize-codespace.md

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+<!--
+  <<< Author notes: Step 4 >>>
+  Start this step by acknowledging the previous step.
+  Define terms and link to docs.github.com.
+-->
+
+## Step 4: Personalize your codespace!
+
+_Nicely done customizing your codespace!_ :partying_face:
+
+When using any development environment, customizing the settings and tools to your preferences and workflows is an important step. GitHub Codespaces offers two main ways of personalizing your codespace: `Settings Sync` with VS Code and `dotfiles`.
+
+`Dotfiles` will be the focus of this activity.
+
+**What are `dotfiles`?** Dotfiles are files and folders on Unix-like systems starting with . that control the configuration of applications and shells on your system. You can store and manage your dotfiles in a repository on GitHub.
+
+Let's see how this works!
+
+### :keyboard: Activity: Enable a `dotfile` for your codespace
+
+1. Start from the landing page of your repository.
+1. In the upper-right corner of any page, click your profile photo, and then click **Settings**.
+1. In the **Code, planning, and automation** section of the sidebar, click **Codespaces**.
+1. Under **Dotfiles**, select **Automatically install dotfiles** so that GitHub Codespaces automatically installs your dotfiles into every new codespace you create.
+1. Click **Select repository** and then choose your current skills working repository as the repository from which to install dotfiles.
+
+### :keyboard: Activity: Add a `dotfile` to your repository and run your codespace
+
+1. Start from the landing page of your repository.
+1. Click the **Code** button located in the middle of the page.
+1. Click the **Codespaces** tab on the box that pops up.
+1. Click the **Create codespace on main** button.
+
+   > Wait about **2 minutes** for the codespace to spin itself up.
+
+1. Verify your codespace is running. The browser should contain a VS Code web-based editor and a terminal should be present such as the below:
+
+   ![codespace1](https://user-images.githubusercontent.com/26442605/207355196-71aab43f-35a9-495b-bcfe-bf3773c2f1b3.png)
+
+1. From inside the codespace in the VS Code explorer window, create a new file `setup.sh`.
+1. Add the following code inside of the file:
+
+   ```bash
+   #!/bin/bash
+
+   sudo apt-get update
+   sudo apt-get install sl
+   ```
+
+1. Save the file.
+   > **Note**: The file should autosave.
+1. Commit the file changes. From the VS Code terminal enter:
+
+   ```shell
+   git add setup.sh --chmod=+x
+   git commit -m "Adding setup.sh from the codespace!"
+   ```
+
+1. Push the changes back to your repository. From the VS Code terminal, enter:
+
+   ```shell
+   git push
+   ```
+
+1. Switch back to the homepage of your repository and view the `setup.sh` to verify the new code was pushed to your repository.
+1. Close the codespace web browser tab.
+1. Click the **Create codespace on main** button.
+
+   > Wait about **2 minutes** for the codespace to spin itself up.
+
+1. Verify your codespace is running, as you did previously.
+1. Verify the `setup.sh` file is present in your VS Code editor.
+1. From the VS Code terminal, type or paste:
+
+   ```shell
+   /usr/games/sl
+   ```
+
+1. Enjoy the show!
+1. Wait about 20 seconds then refresh this page (the one you're following instructions from). [GitHub Actions](https://docs.github.com/en/actions) will automatically update to the next step.

.github/steps/X-finish.md

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+<!--
+  <<< Author notes: Finish >>>
+  Review what we learned, ask for feedback, provide next steps.
+-->
+
+## Finish
+
+_Congratulations friend, you've completed this course!_
+
+<img src="https://octodex.github.com/images/welcometocat.png" alt=celebrate width=300 align=right>
+
+Here's a recap of all the tasks you've accomplished in your repository:
+
+- You learned how to create a codespace and push code to your repository from the codespace.
+- You learned how to use custom images in your codespace.
+- You learned how to customize your codespace.
+- You learned how to personalize your codespace.
+
+### Additional learning and resources
+
+- [Developing in a codespace](https://docs.github.com/en/codespaces/developing-in-codespaces/developing-in-a-codespace). Learn how to delete a codespace, open an existing codespace, connect to a private network, forward ports, and much more.
+- [Set up your repository](https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/introduction-to-dev-containers). Learn how to set minimum machine specs for a codespace, add badges, set up a template repo, and much more.
+- [Personalize and customize GitHub Codespaces](https://docs.github.com/en/codespaces/customizing-your-codespace/personalizing-github-codespaces-for-your-account). Learn how to use setting sync for your codespace, add dotfiles, set the default region, set the default editor, and much more.
+- [Prebuild your codespace](https://docs.github.com/en/codespaces/prebuilding-your-codespaces/about-github-codespaces-prebuilds)
+- [Manage your codespace](https://docs.github.com/en/codespaces/managing-codespaces-for-your-organization/enabling-github-codespaces-for-your-organization)
+
+### What's next?
+
+- Learn more about securing your supply chain by reading: [GitHub Codespaces overview](https://docs.github.com/en/codespaces/overview).
+- [We'd love to hear what you thought of this course](https://github.com/orgs/skills/discussions/categories/code-with-codespaces).
+- [Learn another GitHub skill](https://github.com/skills).
+- [Read the Get started with GitHub docs](https://docs.github.com/en/get-started).
+- To find projects to contribute to, check out [GitHub Explore](https://github.com/explore).

.github/workflows/0-welcome.yml

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+name: Step 0, Welcome
+
+# This step triggers after the learner creates a new repository from the template.
+# This workflow updates from step 0 to step 1.
+
+# This will run every time we create push a commit to `main`.
+# Reference: https://docs.github.com/en/actions/learn-github-actions/events-that-trigger-workflows
+on:
+  create:
+  workflow_dispatch:
+
+# Reference: https://docs.github.com/en/actions/security-guides/automatic-token-authentication
+permissions:
+  # Need `contents: read` to checkout the repository.
+  # Need `contents: write` to update the step metadata.
+  contents: write
+
+jobs:
+  # Get the current step to only run the main job when the learner is on the same step.
+  get_current_step:
+    name: Check current step number
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - id: get_step
+        run: |
+          echo "current_step=$(cat ./.github/steps/-step.txt)" >> $GITHUB_OUTPUT
+    outputs:
+      current_step: ${{ steps.get_step.outputs.current_step }}
+
+  on_start:
+    name: On start
+    needs: get_current_step
+
+    # We will only run this action when:
+    # 1. This repository isn't the template repository.
+    # 2. The step is currently 0.
+    # Reference: https://docs.github.com/en/actions/learn-github-actions/contexts
+    # Reference: https://docs.github.com/en/actions/learn-github-actions/expressions
+    if: >-
+      ${{ !github.event.repository.is_template
+          && needs.get_current_step.outputs.current_step == 0}}
+
+    # We'll run Ubuntu for performance instead of Mac or Windows.
+    runs-on: ubuntu-latest
+
+    steps:
+      # We'll need to check out the repository so that we can edit the README.
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Let's get all the branches.
+
+      # In README.md, switch step 0 for step 1.
+      - name: Update to step 1
+        uses: skills/action-update-step@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          from_step: 0
+          to_step: 1