fix: trying to get missing notebooks to build

- skip YAML metadata from pages
- modify deploy.yml to use Makefile

Files that aren't building:

- optimization/05_portfolio_optimization.html
- polars/03_loading_data.html
- polars/13_window_functions.html
- polars/14_user_defined_functions.html
- polars/16_lazy_execution.html

.github/workflows/deploy.yml

@@ -28,11 +28,11 @@ jobs:
 
       - name: 📦 Install dependencies
         run: |
-          uv pip install marimo jinja2
+          make install
 
       - name: 🛠️ Export notebooks
         run: |
-          python scripts/build.py
+          make build
 
       - name: 📤 Upload artifact
         uses: actions/upload-pages-artifact@v3

Makefile

@@ -1,8 +1,8 @@
 # Default target.
-all : commands
+all: commands
 
 ## commands : show all commands.
-commands :
+commands:
 	@grep -h -E '^##' ${MAKEFILE_LIST} | sed -e 's/## //g' | column -t -s ':'
 
 ## install: install minimal required packages into current environment.

scripts/build.py

@@ -72,7 +72,13 @@ def get_course_metadata(course_dir: Path) -> Dict[str, Any]:
     if readme_path.exists():
         with open(readme_path, "r", encoding="utf-8") as f:
             content = f.read()
-            
+
+            # Strip YAML front matter if present
+            if content.startswith("---"):
+                end = content.find("\n---", 3)
+                if end != -1:
+                    content = content[end + 4:].lstrip("\n")
+
             # Try to extract title from first heading
             title_match = content.split("\n")[0]
             if title_match.startswith("# "):