diff --git a/README.org b/README.org
index f5555bfae1828feb5292c55ad2600c53e5850860..d2399e5926fbc3dd9a1d044ba9299335d7f5eb21 100644
--- a/README.org
+++ b/README.org
@@ -2,40 +2,4 @@
 
 * Summary
 
-Ansible scripts to create VMs.
-The VM contains:
- - nginx
- - openjdk-17
- - shinyproxy
- - docker
- - guix
- - shinyscreen
 
-* Configuration
-
-** Basic system :DONE:
- - Ensure existence of `proxer` user. Shinyproxy is run under it.
- - Create /scratch/proxer folder at root.
- - Create /scratch/proxer/local.
- - Create /scratch/proxer/shinyscreen.
- - Create /scratch/proxer/shinyscreen/input.
- - Create /scratch/proxer/shinyscreen/projects.
-
-** Docker :DONE:
-
-- Docker/shinyproxy settings.
-- Restart docker service.
-
-** NginX :DONE:
-- Install nginx.
-- Generate self-signed certificate.
-- Set nginx up as a reverse proxy for shinyproxy.
-- Restart nginx.
-
-** Shinyproxy.                                                         :DONE:
-
-- Download shinyproxy to scratch/proxer/local.
-- Adapt config file.
-- Connect to nginx and docker.
-
-** Create Shinyscreen package and the container. :TODO:  
diff --git a/ansible.cfg b/ansible.cfg
index 9040fcc81cc06847046eeaaaa1050b954cd00dcf..7feca38cd24706e12f36132ae3250d744565b784 100644
--- a/ansible.cfg
+++ b/ansible.cfg
@@ -1,7 +1,4 @@
 [defaults]
-inventory = hosts.txt
-strategy = free
-command_warnings = false
-remote_user = root
-private_key_file = ~/.ssh/id_ed25519
-vault_password_file = offline/vaultpass
\ No newline at end of file
+inventory = ~/scratch/eci-teach-do-inventory/
+#strategy = free
+command_warnings = false
\ No newline at end of file
diff --git a/main.yml b/main.yml
index 94ea0326bc85eb870cddae91f542b46f1446e5dd..96d62869a955067c247faa3bcd62d1bfc8d1f401 100644
--- a/main.yml
+++ b/main.yml
@@ -2,6 +2,9 @@
 # acces for this to work, ie ask pass allowed for the time bootstrap
 # tasks are taking place. A temporary window from a fixed location
 # makes sense.
+
+# We start from the marketplace shinyproxy images.
+
 - hosts: stations
   become: True
   tasks:
@@ -11,8 +14,6 @@
         update_cache: yes
         cache_valid_time: 86400
       tags: apt
-
-        
     - name: Install debian packages.
       apt:
         name: [ 'openssh-server',
@@ -30,188 +31,39 @@
                 'docker.io',
                 'nginx' ]
       tags: apt
-
-                
-    - name: Create service user 'proxer'.
-      user:
-        name: proxer
-        system: yes
-        groups: docker
-        
-    - name: Create /scratch.
-      ansible.builtin.file:
-        path: /scratch
-        state: directory
-        mode: '0711'
-    - name: Create /scratch/proxer.
-      ansible.builtin.file:
-        path: /scratch/proxer
-        owner: proxer
-        state: directory
-        mode: '0711'
-    - name: Create /scratch/proxer/shinyscreen.
-      ansible.builtin.file:
-        path: /scratch/proxer/shinyscreen
-        owner: proxer
-        state: directory
-        mode: '0711'
-    - name: Create /scratch/proxer/shinyscreen/input_data.
-      ansible.builtin.file:
-        path: /scratch/proxer/shinyscreen/input_data
-        owner: proxer
-        state: directory
-        mode: '0711'
-    - name: Create /scratch/proxer/shinyscreen/projects.
-      ansible.builtin.file:
-        path: /scratch/proxer/shinyscreen/projects
-        owner: proxer
-        state: directory
-        mode: '0711'
-    - name: Create /scratch/proxer/selfsigned.
-      ansible.builtin.file:
-        path: /scratch/proxer/selfsigned
-        owner: proxer
-        state: directory
-        mode: '0700'
-
-    - name: Get Data Practical input data.
-      ansible.builtin.git:
-        repo: 'https://gitlab.lcsb.uni.lu/eci/isb401.git'
-        dest: /tmp/tmpisb401
-        
-    - name: Copy shinyscreen_files to where they are supposed to be.
-      ansible.builtin.copy:
-        remote_src: yes
-        src: /tmp/tmpisb401/shinyscreen_files/
-        dest: /scratch/proxer/shinyscreen/input_data/isb401
-        
-    - name: Copy mzMLs to where they are supposed to be.
-      ansible.builtin.copy:
-        src: files/mzml_data/
-        owner: proxer
-        dest: /scratch/proxer/shinyscreen/input_data/isb401
-        mode: '0644'
-        
-    - name: Adapt permissions.
-      ansible.builtin.file:
-        path: /scratch/proxer/shinyscreen/input_data/isb401
-        owner: proxer
-        state: directory
-        recurse: yes
-        mode: '0711'
-
-    - name: Get Shinyproxy.
-      get_url:
-        url: https://www.shinyproxy.io/downloads/shinyproxy-2.6.0.jar
-        dest: /scratch/proxer/shinyproxy.jar
-        owner: proxer
-        mode: '0700'
-        
-
-    - name: Create private key.
-      community.crypto.openssl_privatekey:
-        path: /scratch/proxer/selfsigned/certificate.key
-        
-    - name: Create simple self-signed certificate.
-      community.crypto.x509_certificate:
-        path: /scratch/proxer/selfsigned/certificate.pem
-        privatekey_path: /scratch/proxer/selfsigned/certificate.key
-        provider: selfsigned
-
-    - name: Copy configuration file for nginx (shinyproxy).
-      ansible.builtin.copy:
-        src: files/etc/nginx/conf.d/shinyproxy.conf
-        dest: /etc/nginx/conf.d/shinyproxy.conf
-        mode: '0644'
-
-    - name: Write the hostname/IP address to the shinyproxy.conf file.
-      ansible.builtin.replace:
-        path: /etc/nginx/conf.d/shinyproxy.conf
-        regexp: '___ECI_VM_HOSTNAME___'
-        replace: "{{ hostvars[inventory_hostname]['ansible_default_ipv4']['address'] }}"
-      notify: Restart nginx.
-
-    - name: Create docker config directory.
-      ansible.builtin.file:
-        path: /etc/systemd/system/docker.service.d
-        state: directory
-        mode: '0744'
-
-    - name: Copy configuration file for docker (shinyproxy).
-      ansible.builtin.copy:
-        src: files/etc/systemd/system/docker.service.d/override.conf
-        dest: /etc/systemd/system/docker.service.d/override.conf
-        mode: '0644'
-      notify:
-        - Reload systemd.
-        - Restart docker.
-
-    - name: Copy config file for shinyproxy.
-      tags: shinyproxy-conf
-      ansible.builtin.copy:
-        src: files/scratch/proxer/application.in.yml
-        dest: /scratch/proxer/application.in.yml
-        owner: proxer
-        mode: '0600'
-
-    - name: Copy users file for shinyproxy.
-      tags: shinyproxy-conf
-      ansible.builtin.copy:
-        src: files/scratch/proxer/users.yml
-        dest: /scratch/proxer/
-        owner: proxer
-        mode: '0600'
-
-    - name: Copy users file for shinyproxy.
-      tags: shinyproxy-conf
-      ansible.builtin.copy:
-        src: files/scratch/proxer/passwd.yml
-        dest: /scratch/proxer/
-        owner: proxer
-        mode: '0600'
-
+    # - name: Copy config file for shinyproxy.
+    #   tags: shinyproxy-conf
+    #   ansible.builtin.copy:
+    #     src: files/scratch/proxer/application.in.yml
+    #     dest: /scratch/proxer/application.in.yml
+    #     owner: proxer
+    #     mode: '0600'
     # - name: Copy users file for shinyproxy.
     #   tags: shinyproxy-conf
     #   ansible.builtin.copy:
-    #     src: files/scratch/proxer/addusers.py
+    #     src: files/scratch/proxer/users.yml
     #     dest: /scratch/proxer/
     #     owner: proxer
-    #     mode: '0700'
-
-    - name: Generate application.yml.
-      tags: shinyproxy-conf
-      ansible.builtin.script:
-        cmd: files/scratch/proxer/addusers.py
-        # creates: /scratch/proxer/application.yml
-        chdir: /scratch/proxer
-        executable: python3
-      notify:
-        - Change application.yml permissions.
-        - Restart shinyproxy.
+    #     mode: '0600'
+    # - name: Copy users file for shinyproxy.
+    #   tags: shinyproxy-conf
+    #   ansible.builtin.copy:
+    #     src: files/scratch/proxer/passwd.yml
+    #     dest: /scratch/proxer/
+    #     owner: proxer
+    #     mode: '0600'
+    # - name: Generate application.yml.
+    #   tags: shinyproxy-conf
+    #   ansible.builtin.script:
+    #     cmd: files/scratch/proxer/addusers.py
+    #     # creates: /scratch/proxer/application.yml
+    #     chdir: /scratch/proxer
+    #     executable: python3
+    #   notify:
+    #     - Change application.yml permissions.
+    #     - Restart shinyproxy.
       
 
-    - name: Copy service file for shinyproxy.
-      tags: shinyproxy-conf
-      ansible.builtin.copy:
-        src: files/etc/systemd/system/shinyproxy.service
-        dest: /etc/systemd/system/shinyproxy.service
-        mode: '0644'
-      notify: Restart shinyproxy.
-
-    - name: Copy shinyproxy docker image.
-      ansible.builtin.copy:
-        src: files/scratch/docker-shinyscreen.tar.gz
-        dest: /scratch/docker-shinyscreen.tar.gz
-
-    - name: Load docker image.
-      ansible.builtin.shell:
-        cmd: docker load -i docker-shinyscreen.tar.gz && touch loaded.shinyscreen
-        creates: loaded.shinyscreen
-        chdir: /scratch
-      notify: Restart shinyproxy.
-
-
-        
 
   handlers:
     - name: Reload systemd.