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base/README.md

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+# 🖥️ Coder Base Module
+
+This module provides the shared logic and workspace provisioning foundation for my Coder templates using Docker containers.
+
+It is designed to be imported and reused by language-specific templates to standardize configuration and reduce duplication
+
+## 📦 Features
+
+- 🐳 **Containerized Workspaces**
+  - Provisions Docker containers using a specified image
+
+- 💻 **Remote IDE Support**
+  - **VS Code Server** with configurable extensions and settings
+  - **JetBrains Gateway** support with selectable IDEs (IntelliJ, PhpStorm, etc.)
+
+- 🧰 **Custom Tooling Support**
+  - Startup scripts to initialize language environments
+
+- 🔃 **Optional Git Repo Clone**
+  - Clones a user-specified repository into `~/repo` during provisioning
+
+
+## 📁 File Structure
+
+```
+coder-base/
+├── main.tf         # Main logic for provisioning the workspace
+├── variables.tf    # Input variables for customization
+├── outputs.tf      # Variables available to use in templates
+```
+
+## 🔧 Inputs
+
+| Name                   | Type                         | Description                                              | Default     | Required |
+|------------------------|------------------------------|----------------------------------------------------------|-------------|----------|
+| `docker_image`         | `string`                     | Docker image to use for the workspace                    | n/a         | ✅ Yes   |
+| `vscode_extensions`    | `list(string)`               | List of VS Code extensions to install                    | `[]`        | ❌ No    |
+| `vscode_settings`      | `map(string)`                | Key-value VS Code settings                               | `{}`        | ❌ No    |
+| `jetbrains_ides`       | `list(string)`               | JetBrains IDEs to enable (e.g., `["IU", "PS"]`)      | `["IU"]`    | ✅ Yes    |
+| `jetbrains_default`    | `string`                     | Default JetBrains IDE to launch                          | `"IU"`      | ✅ Yes    |
+| `docker_socket`        | `string`                     | Optional Docker socket override                          | `""`        | ❌ No    |
+| `repo_url`             | `string`                     | Git repository to clone into `~/repo`                    | `""`        | ❌ No    |
+| `language_startup_script` | `string`                  | Startup shell script executed on container boot         | `""`        | ❌ No    |
+| `language_metadata`    | `list(object)`               | Custom metadata blocks shown in Coder UI (e.g. versions) | `[]`        | ❌ No    |
+
+Each `language_metadata` object includes:
+```hcl
+{
+  display_name = string
+  key          = string
+  script       = string
+  interval     = number
+  timeout      = number
+}
+```