diff --git a/Dockerfile b/Dockerfile
index 941eac2..e068c28 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,6 +19,8 @@ RUN apk add build-base libffi-dev && \
 
 FROM python:3.12-alpine as deploy
 
+ENV CONFIG_FILE="/app/tiny_personal_website/config/config.yaml"
+
 WORKDIR /app
 
 # copy the already built package
diff --git a/README.md b/README.md
index 1fdc532..c7edb7e 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,14 @@ docker run --rm -p 8000:8080 <name of the tag you used>
 
 Then you can go to http://127.0.0.1:8000 in a browser to view your changes.
 
+You can now use an environment variable to set the location of the `config.yaml` to use. Here's an example if you have your config file in your current directory:
+
+```bash
+# mount the current directory to /config, and set the CONFIG_FILE env var to /config/config.yaml
+# this assumes you've built or pulled jessebot/tiny-personal-website:latest locally
+docker run --rm -v .:/config -e CONFIG_FILE=/config/config.yaml -p 8000:8080 jessebot/tiny-personal-website:latest
+```
+
 ### Deploying on an app platform
 
 You want the following command plugged into where-ever this runs