Posts layout
This is the completed Layouts project. It retains home, about, navigation, and CSS, and adds a posts layout that reuses the root navigation. A tiny placeholder image lives beside the post and is copied by a nested asset rule.
From this directory:
cd project
falz build
falz watch --serve --hot-reload
Open /posts/hello/ at the printed address. Output includes dist/posts/hello/index.html and dist/posts/images/cover.png, alongside the root pages and CSS.
The URL still comes from the filename. Continue with Pipes to let front matter choose it.