diff --git a/render/.env.sample b/render/.env.sample
new file mode 100644
index 0000000..e8d45d3
--- /dev/null
+++ b/render/.env.sample
@@ -0,0 +1,2 @@
+IMG_HOST_PORT=<port here>
+IMG_URL=<host url here>
\ No newline at end of file
diff --git a/rpi/.env.sample b/rpi/.env.sample
new file mode 100644
index 0000000..9f8956d
--- /dev/null
+++ b/rpi/.env.sample
@@ -0,0 +1 @@
+IMG_HOST_URL='<img host url>'
\ No newline at end of file