diff --git a/README.md b/README.md
index 0435580..ee62a6e 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,20 @@
 ## Background
 Yet another rewrite of my [personal site](https://ayo.ayco.io)
 
-## Set up -- needs Linux
-1. Install dependencies
+## Development -- needs Debian
+1. Set up your machine. See [digitalOcean tutorial](https://www.digitalocean.com/community/tutorials/how-to-serve-flask-applications-with-gunicorn-and-nginx-on-ubuntu-20-04) (uses cookies)
+
+    ```bash
+    $ sudo apt update
+    $ sudo apt install python3-pip python3-dev build-essential libssl-dev libffi-dev python3-setuptools
+    ```
+
+2. Install dependencies
     1. create python environment: `python3 -m venv .venv`
     2. activate python env: `. .venv/bin/activate`
     3. install wheel: `pip install wheel`
     4. install gunicorn & flask: `pip install gunicorn flask`
-2. To start development:
+3. To start development:
     1. allow port usage: `sudo ufw allow 5000`
     2. run the development server: `python api.py``
-3. After development session, deactivate the python env with: `deactivate`
+4. After development session, deactivate the python env with: `deactivate`