diff --git a/Dockerfile b/Dockerfile
index eb3f584..785a9f3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,8 +3,6 @@ FROM python:3.10
 COPY requirements.txt /root/requirements.txt
 RUN pip install -r /root/requirements.txt
 
-# allow passwordless su
-RUN passwd -d root
+WORKDIR /srv
 
-RUN useradd -m polygl0t -s /bin/bash
-CMD su - polygl0t
+CMD [ "jupyter", "notebook", "--allow-root", "--NotebookApp.token=", "--no-browser", "--ip=0.0.0.0", "--port=8888" ]
diff --git a/README.md b/README.md
index e3966b5..c6f717d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
-# Handy container with CTF tools
+# Zero-setup Jupyter environment for CTF crypto
 <a href="http://www.wtfpl.net/"><img
        src="http://www.wtfpl.net/wp-content/uploads/2012/12/wtfpl-badge-2.png"
        width="80" height="15" alt="WTFPL" /></a>
 
-`docker run ghcr.io/polygl0ts/ctf.docker`
+`docker run -v polygl0ts_notebooks:/srv -p 127.0.0.1:8888:8888 ghcr.io/polygl0ts/ctf.docker`
+
+Go to http://127.0.0.1:8888 in your browser.
diff --git a/requirements.txt b/requirements.txt
index ec84b00..8343e2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,5 @@ fastecdsa
 
 numpy
 galois
+
+jupyter