diff --git a/Makefile b/Makefile
index 689ec8b..b87d6b9 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-.PHONY: build serve deploy ssh setup miniflux gitea goatcounter hermes hermes-sync hermes-chat enrich
+.PHONY: build serve deploy ssh setup miniflux gitea goatcounter hermes hermes-sync hermes-chat enrich wireguard calibre calibre-sync
 
 # Load .env if it exists
 -include .env
@@ -66,5 +66,17 @@ hermes-chat:
 	ssh -t root@$(MONOTROPE_HOST) docker exec -it hermes hermes chat
 
 
+wireguard:
+	@test -n "$(MONOTROPE_HOST)" || (echo "Error: MONOTROPE_HOST is not set"; exit 1)
+	ansible-playbook -i "$(MONOTROPE_HOST)," -u root infra/ansible/playbook.yml --tags wireguard
+
+calibre:
+	@test -n "$(MONOTROPE_HOST)" || (echo "Error: MONOTROPE_HOST is not set"; exit 1)
+	ansible-playbook -i "$(MONOTROPE_HOST)," -u root infra/ansible/playbook.yml --tags calibre
+
+calibre-sync:
+	@test -n "$(MONOTROPE_HOST)" || (echo "Error: MONOTROPE_HOST is not set"; exit 1)
+	ssh root@$(MONOTROPE_HOST) /opt/calibre/sync.sh
+
 enrich:
 	uv run enrich.py
diff --git a/infra/Caddyfile b/infra/Caddyfile
index 7eec188..1c646ec 100644
--- a/infra/Caddyfile
+++ b/infra/Caddyfile
@@ -60,6 +60,20 @@ git.monotrope.au {
 	encode zstd gzip
 }
 
+# Calibre-web
+books.monotrope.au {
+	reverse_proxy localhost:8083
+
+	header {
+		X-Content-Type-Options "nosniff"
+		X-Frame-Options "DENY"
+		Referrer-Policy "strict-origin-when-cross-origin"
+		Permissions-Policy "camera=(), microphone=(), geolocation=()"
+	}
+
+	encode zstd gzip
+}
+
 # GoatCounter analytics
 stats.monotrope.au {
 	reverse_proxy localhost:8081
diff --git a/infra/ansible/playbook.yml b/infra/ansible/playbook.yml
index 4746f02..f8c7480 100644
--- a/infra/ansible/playbook.yml
+++ b/infra/ansible/playbook.yml
@@ -18,6 +18,7 @@
     hermes_telegram_bot_token: "{{ lookup('env', 'HERMES_TELEGRAM_BOT_TOKEN') }}"
     hermes_telegram_allowed_users: "{{ lookup('env', 'HERMES_TELEGRAM_ALLOWED_USERS') }}"
     hermes_miniflux_api_key: "{{ lookup('env', 'HERMES_MINIFLUX_API_KEY') }}"
+    wg_client_pubkey: "{{ lookup('env', 'WG_CLIENT_PUBKEY') }}"
 
   tasks:
 
@@ -100,6 +101,7 @@
         - miniflux
         - gitea
         - goatcounter
+        - calibre
 
     - name: Enable and start Caddy
       systemd:
@@ -198,6 +200,75 @@
       ufw:
         state: enabled
 
+    # ── WireGuard ───────────────────────────────────────────────────────────
+
+    - name: Install WireGuard
+      apt:
+        name: wireguard
+        state: present
+      tags: wireguard
+
+    - name: Generate WireGuard server private key
+      shell: wg genkey > /etc/wireguard/server_privatekey && chmod 600 /etc/wireguard/server_privatekey
+      args:
+        creates: /etc/wireguard/server_privatekey
+      tags: wireguard
+
+    - name: Generate WireGuard server public key
+      shell: cat /etc/wireguard/server_privatekey | wg pubkey > /etc/wireguard/server_publickey
+      args:
+        creates: /etc/wireguard/server_publickey
+      tags: wireguard
+
+    - name: Read server private key
+      slurp:
+        src: /etc/wireguard/server_privatekey
+      register: wg_server_privkey
+      tags: wireguard
+
+    - name: Read server public key
+      slurp:
+        src: /etc/wireguard/server_publickey
+      register: wg_server_pubkey
+      tags: wireguard
+
+    - name: Write WireGuard config
+      copy:
+        dest: /etc/wireguard/wg0.conf
+        owner: root
+        group: root
+        mode: '0600'
+        content: |
+          [Interface]
+          PrivateKey = {{ wg_server_privkey.content | b64decode | trim }}
+          Address = 10.100.0.1/24
+          ListenPort = 51820
+
+          [Peer]
+          PublicKey = {{ wg_client_pubkey }}
+          AllowedIPs = 10.100.0.2/32
+      notify: Restart WireGuard
+      tags: wireguard
+
+    - name: Allow WireGuard UDP port
+      ufw:
+        rule: allow
+        port: '51820'
+        proto: udp
+      tags: wireguard
+
+    - name: Enable and start WireGuard
+      systemd:
+        name: wg-quick@wg0
+        enabled: true
+        state: started
+      tags: wireguard
+
+    - name: Display server public key
+      debug:
+        msg: "WireGuard server public key: {{ wg_server_pubkey.content | b64decode | trim }}"
+      tags: wireguard
+
     # ── Docker ──────────────────────────────────────────────────────────────
 
     - name: Create Docker keyring directory
@@ -404,6 +475,83 @@
       tags: hermes
 
 
+    # ── Calibre (kobodl + calibre-web) ────────────────────────────────────
+
+    - name: Create Calibre directory
+      file:
+        path: /opt/calibre
+        state: directory
+        owner: root
+        group: root
+        mode: '0750'
+      tags: calibre
+
+    - name: Copy Calibre docker-compose.yml
+      copy:
+        src: ../calibre/docker-compose.yml
+        dest: /opt/calibre/docker-compose.yml
+        owner: root
+        group: root
+        mode: '0640'
+      tags: calibre
+
+    - name: Pull and start Calibre services
+      command: docker compose up -d --pull always
+      args:
+        chdir: /opt/calibre
+      tags: calibre
+
+    - name: Fix downloads volume ownership
+      command: >
+        docker compose exec -T kobodl
+        chown 1000:1000 /downloads
+      args:
+        chdir: /opt/calibre
+      tags: calibre
+
+    - name: Check if Calibre library exists
+      command: >
+        docker compose exec -T calibre-web
+        test -f /library/metadata.db
+      args:
+        chdir: /opt/calibre
+      register: calibre_db_check
+      changed_when: false
+      failed_when: false
+      tags: calibre
+
+    - name: Initialise Calibre library
+      command: >
+        docker compose exec -T --user abc calibre-web
+        calibredb add --empty --with-library /library/
+      args:
+        chdir: /opt/calibre
+      when: calibre_db_check.rc != 0
+      tags: calibre
+
+    - name: Install calibre-sync script
+      copy:
+        dest: /opt/calibre/sync.sh
+        owner: root
+        group: root
+        mode: '0755'
+        content: |
+          #!/bin/bash
+          set -euo pipefail
+          cd /opt/calibre
+
+          # Download all books from Kobo
+          docker compose exec -T kobodl kobodl --config /home/config/kobodl.json book get --get-all --output-dir /downloads
+
+          # Import any new EPUBs into Calibre library
+          docker compose exec -T calibre-web sh -c '
+            for f in /downloads/*.epub; do
+              [ -f "$f" ] || continue
+              calibredb add "$f" --with-library /library/ && rm "$f"
+            done
+          '
+      tags: calibre
+
     # ── GoatCounter ─────────────────────────────────────────────────────────
 
     - name: Create goatcounter system user
@@ -559,3 +707,8 @@
       command: docker compose restart
       args:
         chdir: /opt/hermes
+
+    - name: Restart WireGuard
+      systemd:
+        name: wg-quick@wg0
+        state: restarted
diff --git a/infra/calibre/docker-compose.yml b/infra/calibre/docker-compose.yml
new file mode 100644
index 0000000..8de452f
--- /dev/null
+++ b/infra/calibre/docker-compose.yml
@@ -0,0 +1,50 @@
+services:
+  kobodl:
+    image: ghcr.io/subdavis/kobodl
+    restart: unless-stopped
+    user: "1000:1000"
+    command: --config /home/config/kobodl.json serve --host 0.0.0.0 --output-dir /downloads
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "3"
+    ports:
+      - "10.100.0.1:5100:5000"
+    volumes:
+      - kobodl_config:/home/config
+      - downloads:/downloads
+    networks:
+      - default
+      - monotrope
+
+  calibre-web:
+    image: lscr.io/linuxserver/calibre-web:latest
+    restart: unless-stopped
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "3"
+    ports:
+      - "127.0.0.1:8083:8083"
+    volumes:
+      - calibre_config:/config
+      - library:/library
+      - downloads:/downloads
+    environment:
+      PUID: "1000"
+      PGID: "1000"
+      TZ: "Australia/Sydney"
+      DOCKER_MODS: "linuxserver/mods:universal-calibre"
+
+networks:
+  default:
+  monotrope:
+    external: true
+
+volumes:
+  kobodl_config:
+  calibre_config:
+  library:
+  downloads: