diff --git a/README.md b/README.md
index efa6df2..f6575ff 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,66 @@
 # temporary-indexing-app
 
 An app that uses the [`temp-index`](https://pypi.org/project/temp-index/) python module.
+
+## deploy it
+
+```
+sudo apt-get install libtiff5-dev libjpeg-dev libopenjp2-7-dev zlib1g-dev \
+libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev python3-tk \
+libharfbuzz-dev libfribidi-dev libxcb1-dev build-essential python3-dev
+```
+
+```
+sudo apt install nginx certbot python3-certbot-nginx
+sudo certbot -d foo.com index.simonbrowne.biz
+```
+
+```
+server {
+  listen 80;
+  server_name index.simonbrowne.biz;
+  return 301 https://$server_name$request_uri;
+}
+
+server {
+  listen 443 ssl;
+  server_name index.simonbrowne.biz;
+  root /var/www/library/varia-library-website;
+
+  ssl_certificate /etc/letsencrypt/live/index.simonbrowne.biz/fullchain.pem;
+  ssl_certificate_key /etc/letsencrypt/live/index.simonbrowne.biz/privkey.pem;
+  ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+  ssl_ciphers HIGH:!aNULL:!MD5;
+
+  access_log /var/log/nginx/index.simonbrowne.biz.log;
+  error_log /var/log/nginx/index.simonbrowne.biz.log;
+
+  error_page 404 /404.html;
+
+  location / {
+        proxy_pass         http://127.0.0.1:5000/;
+        proxy_redirect     off;
+
+        proxy_set_header   Host                 $host;
+        proxy_set_header   X-Real-IP            $remote_addr;
+        proxy_set_header   X-Forwarded-For      $proxy_add_x_forwarded_for;
+        proxy_set_header   X-Forwarded-Proto    $scheme;
+  }
+}
+```
+
+```
+git clone https://git.vvvvvvaria.org/simoon/temporary-indexing-app /var/www/temporary-indexing-app
+cd /var/www/temporary-indexing-app
+tmux
+make
+```
+
+## update it
+
+```
+tmux attach
+ctrl-c ...
+git pull
+make
+```