diff --git a/README.md b/README.md
index 1a57408..b5c16b4 100644
--- a/README.md
+++ b/README.md
@@ -12,16 +12,33 @@ Does not support different accounts.
 
 ## Install
 
+### Archiver
+
 1. Create a venv
 2. `pip install -r requirements.txt`
 3. `cp config.yml.sample config.yml`
 4. Edit `config.yml` and configure your login info.
-5. `python3 run.py`
+5. `python3 archiver.py`
 
-A sample systemd service file is included.
+### Viewer
+
+1. `sudo mkdir /etc/secrets`
+2. `sudo chown -R root:root /etc/secrets`
+3. Generate your password:
+   ```shell
+   echo -n "<your password>" | base64
+   ```
+4. Edit `/etc/secrets/imapviewer` with this content:
+   ```shell
+   SQLITE3_DB=<path to your sqlite3 database>
+   HTTP_AUTH_PASS=<your encoded password>
+   ```
+5. `sudo chmod 600 /etc/secrets/imapviewer`
+6. Reload and start the service.
+
+Sample systemd services file is included.
 
 ## To Do
 
 - [ ] Fix subject decoding. Some character sets aren't detected correctly.
-- [ ] Sync Gmail categories as folders.
 - [ ] In the viewer, format the raw email to something viewable.
diff --git a/requirements.txt b/requirements.txt
index c6f410d..2732923 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,5 @@ chardet==5.2.0
 humanize==4.9.0
 mmh3==4.1.0
 flask==3.0.2
-python-magic==0.4.27
\ No newline at end of file
+python-magic==0.4.27
+flask_httpauth==4.8.0
\ No newline at end of file
diff --git a/server.py b/server.py
index acab8cd..11af8de 100644
--- a/server.py
+++ b/server.py
@@ -1,3 +1,4 @@
+import base64
 import json
 import os
 import sqlite3
@@ -6,11 +7,31 @@ from pathlib import Path
 
 import magic
 from flask import Flask, render_template, send_from_directory
+from flask_httpauth import HTTPBasicAuth
 
 app = Flask(__name__)
 
 if not os.environ.get('SQLITE3_DB'):
     raise Exception('SQLITE3_DB not set.')
+if not os.environ.get('HTTP_AUTH_PASS'):
+    raise Exception('HTTP_AUTH_PASS not set.')
+
+try:
+    user_password = base64.b64decode(os.environ.get('HTTP_AUTH_PASS')).decode().replace('\n', '')
+except UnicodeDecodeError:
+    raise Exception('Cannot decode password. Is it base64 encoded?')
+
+auth = HTTPBasicAuth()
+users = {
+    'admin': user_password,
+}
+
+
+@auth.get_password
+def get_pw(username):
+    if username in users:
+        return users.get(username)
+    return None
 
 
 def get_db_connection():
@@ -24,6 +45,7 @@ def dict_from_row(row):
 
 
 @app.route('/')
+@auth.login_required
 def index():
     conn = get_db_connection()
     folders = conn.execute('SELECT name, table_name FROM folders_mapping').fetchall()
@@ -36,6 +58,7 @@ def index():
 
 
 @app.route('/folder/<table_name>')
+@auth.login_required
 def folder(table_name):
     conn = get_db_connection()
     emails = conn.execute(f'SELECT * FROM {table_name} ORDER BY timestamp DESC').fetchall()
@@ -47,6 +70,7 @@ def folder(table_name):
 
 
 @app.route('/email/<table_name>/<id>')
+@auth.login_required
 def email(table_name, id):
     conn = get_db_connection()
     email = conn.execute(f'SELECT * FROM {table_name} WHERE id = ?', (id,)).fetchone()
@@ -58,6 +82,7 @@ def email(table_name, id):
 
 
 @app.route('/attachments/<path:filename>')
+@auth.login_required
 def download_file(filename):
     mimetype = magic.from_file(str(Path('attachments', filename)), mime=True)
     return send_from_directory('attachments', filename, mimetype=mimetype)
diff --git a/imaparchiver.service b/systemd/imaparchiver.service
similarity index 100%
rename from imaparchiver.service
rename to systemd/imaparchiver.service
diff --git a/systemd/imaparchiver.timer b/systemd/imaparchiver.timer
new file mode 100644
index 0000000..2ac7389
--- /dev/null
+++ b/systemd/imaparchiver.timer
@@ -0,0 +1,9 @@
+[Unit]
+Description=IMAP archiver service timer
+
+[Timer]
+OnBootSec=15min
+OnUnitActiveSec=12h
+
+[Install]
+WantedBy=timers.target
diff --git a/systemd/imapviewer.service b/systemd/imapviewer.service
new file mode 100644
index 0000000..e2963a3
--- /dev/null
+++ b/systemd/imapviewer.service
@@ -0,0 +1,15 @@
+[Unit]
+Description=IMAP archiver viewer
+Wants=network-online.target
+After=network-online.target
+
+[Service]
+User=emailsync
+Group=emailsync
+EnvironmentFile=/etc/secrets/imapviewer
+ExecStart=/srv/email/imap-archiver/venv/bin/python3 /srv/email/imap-archiver/server.py
+SyslogIdentifier=imap-viewer
+Restart=on-failure
+
+[Install]
+WantedBy=multi-user.target