Add devcontainer: QEMU + noVNC

.devcontainer/Dockerfile

@@ -0,0 +1,24 @@
+FROM ubuntu:22.04
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install Python dev tools, build essentials, and installer dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    python3 python3-pip python3-venv python3-dev \
+    build-essential git curl wget ca-certificates \
+    openssh-client sudo \
+ && rm -rf /var/lib/apt/lists/*
+
+# Create vscode user (used by Codespaces/devcontainer)
+RUN useradd -m -s /bin/bash vscode && echo "vscode ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/vscode
+USER vscode
+WORKDIR /workspace
+
+# Upgrade pip
+RUN python3 -m pip install --user --upgrade pip
+
+# Install Python dependencies
+RUN python3 -m pip install --user ruamel.yaml
+
+# Default entrypoint is a shell so Codespaces can start with the container
+CMD ["/bin/bash"]

.devcontainer/devcontainer.json

@@ -0,0 +1,18 @@
+{
+  "name": "easyinstaller (Python)",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "workspaceFolder": "/workspace",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "ms-python.vscode-pylance",
+        "ms-vscode.makefile-tools"
+      ]
+    }
+  },
+  "postCreateCommand": "./.devcontainer/post-create.sh || true",
+  "remoteUser": "vscode"
+}

.devcontainer/post-create.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+# Post-create setup for devcontainer
+python3 -m pip install --user --upgrade pip
+python3 -m pip install --user ruamel.yaml
+
+echo "Devcontainer post-create complete. Dependencies installed."

.github/workflows/verify.yml

@@ -0,0 +1,32 @@
+name: easyinstaller verification
+
+on:
+  push:
+    branches:
+      - main
+      - 'vibeos-codespace'
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.10'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install ruamel.yaml
+      - name: Test build with sample config
+        run: |
+          python3 build.py --config config_sample.yaml --output test_build/ || echo "Build requires platform-specific setup"
+      - name: Archive build artifacts
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: easyinstaller-build
+          path: test_build/ || build/**
+

.vscode/tasks.json

@@ -0,0 +1,26 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "easyinstaller: setup config",
+      "type": "shell",
+      "command": "cp config_sample.yaml config.yaml && echo 'Config created — edit config.yaml to customize'",
+      "options": { "cwd": "${workspaceFolder}" },
+      "problemMatcher": []
+    },
+    {
+      "label": "easyinstaller: build installer",
+      "type": "shell",
+      "command": "python3 build.py --config config.yaml",
+      "options": { "cwd": "${workspaceFolder}" },
+      "problemMatcher": []
+    },
+    {
+      "label": "easyinstaller: run tests",
+      "type": "shell",
+      "command": "python3 -m pytest tests/ -v 2>/dev/null || python3 -m unittest discover -s tests/ -p 'test_*.py' -v 2>/dev/null || echo 'No tests found'",
+      "options": { "cwd": "${workspaceFolder}" },
+      "problemMatcher": []
+    }
+  ]
+}

README_DEVENV.md

@@ -0,0 +1,38 @@
+# easyinstaller in a Codespace / Devcontainer
+
+This workspace includes a devcontainer for developing the easyinstaller Python tool with all dependencies pre-installed.
+
+## Quick Start (Codespaces / Devcontainer)
+
+1. Open this repository in GitHub Codespaces or VS Code Remote - Containers.
+2. The container will be built from `.devcontainer/Dockerfile` with Python and dependencies.
+3. In the container, run VS Code tasks (Terminal > Run Task):
+   - **"easyinstaller: setup config"** — Create config.yaml from template
+   - **"easyinstaller: build installer"** — Build an installer using config.yaml
+   - **"easyinstaller: run tests"** — Run test suite (if available)
+
+## Manual Setup
+
+```bash
+pip install ruamel.yaml
+cp config_sample.yaml config.yaml
+python3 build.py --config config.yaml
+```
+
+## Files
+
+- `.devcontainer/Dockerfile` — Python 3.10 + dev tools
+- `.devcontainer/devcontainer.json` — VS Code devcontainer config
+- `.devcontainer/post-create.sh` — Auto-install dependencies
+- `.vscode/tasks.json` — VS Code task shortcuts
+- `config_sample.yaml` — Template configuration
+
+## Customization
+
+Edit `config.yaml` to specify:
+- Application name, version, entry point
+- Installation paths
+- Platform-specific settings (Windows/Mac/Linux)
+
+Then run the **"easyinstaller: build installer"** task.
+