1 files changed, 9 insertions, 3 deletions
diff --git a/vmadm.md b/vmadm.md
index 24ffe5c..2d97876 100644
--- a/vmadm.md
+++ b/vmadm.md
@@ -36,9 +36,15 @@ V4cecTlFJGBtUOUAAAAMbGl3QGV4b2xvYmUxAQIDBAUGBw==
 -----END OPENSSH PRIVATE KEY-----
 ~~~
 
+Note that we use *tilde expansion* in filenames to indicate they go
+into the home directory. The Subplot test runner sets the `HOME`
+environment variable to a suitable directory, so that the files don't
+go into the actual home directory of the person running the generated
+test program
+
 ~~~{#config.yaml .file .yaml}
-image_directory: images
-default_base_image: base.qcow2
+image_directory: ~/images
+default_base_image: ~/base.qcow2
 default_image_gib: 5
 default_memory_mib: 2048
 default_cpus: 1
@@ -46,7 +52,7 @@ default_generate_host_certificate: true
 default_autostart: true
 ca_key: ca_key
 authorized_keys:
-  - .ssh/id_rsa.pub
+  - ~/.ssh/id_rsa.pub
 ~~~
 
 ~~~{#ssh_key_pub .file}