diff --git a/vscode-extension/README.md b/vscode-extension/README.md
index 4ac882b57..4aeb9cc24 100644
--- a/vscode-extension/README.md
+++ b/vscode-extension/README.md
@@ -2,33 +2,37 @@
 
 ## Overview
 
-AIConfig Editor is an open-source playground that supports local and remote models from OpenAI, Anthropic, Meta, Google, HuggingFace, Anyscale, and more.
+**AIConfig Editor turns VS Code into a generative AI prompt IDE**, allowing you to run models from any provider (OpenAI, Google, Hugging Face, your local computer...) or any modality (text, image, audio) in a single universal playground.
 
-![WorkbookUI](https://github.com/lastmile-ai/aiconfig/assets/25641935/963eb31b-ce0f-4aa8-89ff-7c4c78ce24c9)
+The prompts and model settings get saved in a `.aiconfig.yaml` or `.aiconfig.json` file, which can be source controlled and used in your application code via the [AIConfig SDK](https://github.com/lastmile-ai/aiconfig).
 
-This extension is built on [`aiconfig`](https://github.com/lastmile-ai/aiconfig), which is a JSON/YAML-based format for storing prompts and model generation settings.
+> [Read the full documentation for more details](https://aiconfig.lastmileai.dev/docs/basics)
 
-AIConfig consists of 3 parts:
+![EditorUI](https://github.com/lastmile-ai/aiconfig/assets/25641935/65eb14a9-bb4f-42f4-a43c-b5787c1a4e98)
 
-1. **AI Workbook** -- notebook editor for both local and remote model experimentation
-2. **.aiconfig.json/yaml** -- the config file containing the prompts and model settings.
-3. **SDK** -- Use the aiconfig file in code with the [AIConfig SDK](https://github.com/lastmile-ai/aiconfig).
+[**Demo Video**](https://github.com/lastmile-ai/aiconfig/assets/25641935/a790d650-e7be-4b1b-8b99-d5854dda4ac6)
 
-Together, this turns VSCode into a generative AI prompt IDE. You can use same environment and config artifact across the playground and SDK.
+![DemoVideo](https://github.com/lastmile-ai/aiconfig/assets/25641935/a790d650-e7be-4b1b-8b99-d5854dda4ac6)
 
-### Quick Start
+### Getting Started
+
+#### First use
 
 1. Install the [AIConfig Editor extension](https://marketplace.visualstudio.com/items?itemName=lastmile-ai.vscode-aiconfig).
-2. Create a .env file with your API keys: e.g. `OPENAI_API_KEY='your-key’`
-3. Open Command Palette (`Ctrl`+`Shift`+`P`) and select `AIConfig: Create New` to launch an Untitled aiconfig.
+2. Run the **AIConfig: Welcome** command (`CMD`+`SHIFT`+`P` -> `AIConfig: Welcome`), and follow the steps.
+   ![Welcome](https://github.com/lastmile-ai/aiconfig/assets/25641935/78039d8a-c710-421b-8764-e272f639cbe5)
+3. Check out some of our [**cookbook templates**](https://github.com/lastmile-ai/aiconfig/tree/main/cookbooks) for inspiration!
+
+#### Next use
+
+- Create an untitled aiconfig using the **AIConfig: Create New** command (`CMD`+`SHIFT`+`P` -> `AIConfig: Create New`) to launch an Untitled aiconfig.
 
 ## Key Features
 
-- **Stay in flow**. Access all generative AI models in a single place, directly in your IDE.
-- **Universal notebook playground**. Swap between models, chain models together, and create prompt templates.
-- **Access local and remote models in one place**. Out-of-the-box support for text, image, and audio models.
-- **Version control prompts**. Manage prompts right beside your code.
-- **Connect to your own models and endpoints**. [Extend AIConfig](https://aiconfig.lastmileai.dev/docs/extensibility) to work with any model and endpoint.
+- **Access local and remote models in one place**. Access all generative AI models in a single place, **directly in your IDE**. Out-of-the-box support for text, image, and audio models.
+- **Universal prompt engineering playground**. Swap between models, chain prompts together, and create prompt templates. Use these prompts in code using the [AIConfig SDK](https://github.com/lastmile-ai/aiconfig).
+- **Version control prompts**. Manage prompts and model settings in config files that you can put in source control, right beside your code.
+- **Connect to your own models and endpoints**. [Extend AIConfig](https://aiconfig.lastmileai.dev/docs/extensibility) to work with any model and endpoint. See [custom models](#custom-models) section for more details.
 
 ## Supported Models
 
@@ -49,3 +53,60 @@ For more details, please see https://aiconfig.lastmileai.dev/docs/overview/model
 | Meta                              | **Llama 2**                                                                                                  | Python   | 🤝 [Extension](https://github.com/lastmile-ai/aiconfig/tree/main/extensions/llama/python)                   |
 | Meta                              | **Llama Guard**                                                                                              | Python   | 🤝 [Extension](https://github.com/lastmile-ai/aiconfig/tree/main/extensions/llama-guard)                    |
 | HuggingFace Transformer Pipelines | **Text Generation**                                                                                          | Python   | 🤝 [Extension](https://github.com/lastmile-ai/aiconfig/tree/main/extensions/HuggingFaceTransformers/python) |
+
+## How it works
+
+AIConfig Editor is the UI for [AIConfig](https://github.com/lastmile-ai/aiconfig), which is a [JSON/YAML schema](https://aiconfig.lastmileai.dev/docs/overview/ai-config-format) for storing generative AI prompts, models and model settings as a config file.
+
+> For example, check out [this sample aiconfig](https://github.com/lastmile-ai/aiconfig/blob/main/cookbooks/Function-Calling-OpenAI/function-call.aiconfig.json) that handles function calling and prompt chaining.
+
+**On install**, the extension installs the [`python-aiconfig`](https://pypi.org/project/python-aiconfig/) pip package in your Python environment.
+
+**On open**, when you open a `*.aiconfig.yaml` file in VS Code, this extension launches a [Python server](https://github.com/lastmile-ai/aiconfig/tree/main/python/src/aiconfig/editor/server) which is running the [AIConfig SDK](https://aiconfig.lastmileai.dev/docs/overview/run-aiconfig).
+
+As you edit and run prompts in the editor, the server uses the AIConfig SDK to run those prompts. This provides you with a lot of flexibility, because you can install additional [AIConfig Extensions](https://github.com/lastmile-ai/aiconfig/tree/main/extensions) in your Python environment, and use them in the editor.
+
+## Extensibility and Customization
+
+> Read [How it works](#how-it-works) for some additional context.
+
+When you use the AIConfig Editor, the extension installs [`python-aiconfig`](https://pypi.org/project/python-aiconfig/) in your Python env. You can install additional extensions and dependencies in the same Python env, and then use them in the AIConfig Editor.
+
+### Instructions
+
+1. `pip3 install <extension_package>` in your python env (e.g. `pip3 install aiconfig-extension-hugging-face` for Hugging Face models via Transformers, Diffusers and Inference endpoints)
+2. Run **AIConfig: Create Custom Model Registry** command (`CMD`+`SHIFT`+`P` -> `AIConfig: Create Custom Model Registry`)
+   ![ModelRegistry](https://github.com/lastmile-ai/aiconfig/assets/25641935/7a1ba7df-d322-442b-a237-aaf2b1329fff)
+3. Register the additional models from the package imported in Step 1. e.g.
+   > [Copy the full sample](https://github.com/lastmile-ai/aiconfig/blob/65e12392c7918874518506576e584e01a0fcdd9a/cookbooks/Gradio/aiconfig_model_registry.py#L4)
+
+```
+from aiconfig_extension_hugging_face import (
+    HuggingFaceText2ImageDiffusor,
+    HuggingFaceTextGenerationTransformer,
+    HuggingFaceTextSummarizationTransformer,
+)
+
+from aiconfig import AIConfigRuntime
+
+
+def register_model_parsers() -> None:
+    """Register model parsers for HuggingFace models."""
+
+    text_to_image = HuggingFaceText2ImageDiffusor()
+    AIConfigRuntime.register_model_parser(text_to_image, text_to_image.id())
+
+    text_generation = HuggingFaceTextGenerationTransformer()
+    AIConfigRuntime.register_model_parser(
+        text_generation, text_generation.id()
+    )
+    text_summarization = HuggingFaceTextSummarizationTransformer()
+    AIConfigRuntime.register_model_parser(
+        text_summarization, text_summarization.id()
+    )
+```
+
+4. Open an `*.aiconfig.yaml` (e.g. `CMD`+`SHIFT`+`P` -> `AIConfig: Create New`), and now you can use the custom extension in the editor!
+   ![HuggingFace](https://github.com/lastmile-ai/aiconfig/assets/25641935/c8eee980-90f5-4201-9b4a-047944a4d756)
+
+> To define you own extensions, please see [Extensibility](https://aiconfig.lastmileai.dev/docs/extensibility) docs.
diff --git a/vscode-extension/package.json b/vscode-extension/package.json
index 496520f02..6d11051ca 100644
--- a/vscode-extension/package.json
+++ b/vscode-extension/package.json
@@ -5,7 +5,7 @@
   "author": "LastMile AI",
   "displayName": "AIConfig Editor",
   "description": "AIConfig notebook editor that turns VSCode into a generative AI studio.",
-  "version": "0.0.14",
+  "version": "0.0.15",
   "license": "MIT",
   "engines": {
     "vscode": "^1.85.0"
@@ -83,6 +83,11 @@
         "command": "vscode-aiconfig.setApiKeys",
         "title": "Set API Keys",
         "category": "AIConfig"
+      },
+      {
+        "command": "vscode-aiconfig.showWelcomePage",
+        "title": "Welcome",
+        "category": "AIConfig"
       }
     ],
     "customEditors": [
diff --git a/vscode-extension/src/extension.ts b/vscode-extension/src/extension.ts
index 3ab81da60..5fd86d704 100644
--- a/vscode-extension/src/extension.ts
+++ b/vscode-extension/src/extension.ts
@@ -50,6 +50,17 @@ export async function activate(context: vscode.ExtensionContext) {
 
   await performVersionInstallAndUpdateActionsIfNeeded(context);
 
+  const showWelcomeCommand = vscode.commands.registerCommand(
+    COMMANDS.SHOW_WELCOME,
+    () => {
+      vscode.commands.executeCommand(
+        "workbench.action.openWalkthrough",
+        "lastmile-ai.vscode-aiconfig#welcomeWalkthrough"
+      );
+    }
+  );
+  context.subscriptions.push(showWelcomeCommand);
+
   const setupCommand = vscode.commands.registerCommand(COMMANDS.INIT, () => {
     initialize(context, extensionOutputChannel);
   });
diff --git a/vscode-extension/src/util.ts b/vscode-extension/src/util.ts
index 137e611b0..dd6ee61f3 100644
--- a/vscode-extension/src/util.ts
+++ b/vscode-extension/src/util.ts
@@ -22,6 +22,7 @@ export const COMMANDS = {
   SET_API_KEYS: `${EXTENSION_NAME}.setApiKeys`,
   SHARE: `${EXTENSION_NAME}.share`,
   SUBMIT_FEEDBACK: `${EXTENSION_NAME}.submitFeedback`,
+  SHOW_WELCOME: `${EXTENSION_NAME}.showWelcomePage`,
 };
 
 export const SUPPORTED_FILE_EXTENSIONS = [".json", ".yaml", ".yml"];