Add packaging for vagrant box and cleanup step

debian-13/README.md

@@ -1,24 +1,34 @@
 # Debian Trixie Builds
 
 This directory contains Packer configuration for building Debian 13 (Trixie)
-images
 
-## Usage
+### Overview
 
-Build the image:
+These builds use a multi-stage Packer workflow:
 
-```
-make
-```
+- The first stage creates a minimal base image from the installer ISO
+- The second stage reuses that base image to produce a Vagrant-ready box
 
-Remove build artifacts:
+### Usage
 
-```
-make clean
-```
+Build the base qemu image:
 
-Build with a visible VM console for debugging:
+    make base
 
-```
-make HEADLESS=false
-```
+Build vagrant image:
+
+    make vagrant
+
+Package vagrant box:
+
+    make package
+
+Build with visible console:
+
+    make base HEADLESS=false
+
+### Publishing
+
+Built boxes from this configuration are published at
+[krislamo.org/debian13](https://portal.cloud.hashicorp.com/vagrant/discover/krislamo.org/debian13)
+on Vagrant Cloud