diff --git a/plays/emma.yml b/plays/emma.yml
index a708cc5..bc1d00d 100644
--- a/plays/emma.yml
+++ b/plays/emma.yml
@@ -60,3 +60,18 @@
         webdav_user: "{{ vault_webdav_user }}"
         webdav_password: "{{ vault_webdav_password }}"
         webdav_password_bcrypt: "{{ vault_webdav_password_bcrypt }}"
+
+- name: Set up Otter
+  hosts: emma
+  become: yes
+  tags: otter
+  roles:
+    - role: any.common.btrfs-subvolumes
+      vars:
+        subvolumes:
+          - filesystem_uuid: "{{ btrfs_nvme.uuid }}"
+            filesystem_path: "{{ btrfs_nvme.path }}"
+            name: "/@rootfs/otter/data"
+    - role: any.software.otter
+      vars:
+        data_dir: '{{ btrfs_nvme.path }}/data/otter/data'
diff --git a/roles/any.software.otter/files/otter.Caddyfile b/roles/any.software.otter/files/otter.Caddyfile
new file mode 100644
index 0000000..9ea78b0
--- /dev/null
+++ b/roles/any.software.otter/files/otter.Caddyfile
@@ -0,0 +1,3 @@
+otter.roosens.me {
+    reverse_proxy localhost:8017
+}
diff --git a/roles/any.software.otter/files/otter.data.backup.sh b/roles/any.software.otter/files/otter.data.backup.sh
new file mode 100644
index 0000000..dc63b24
--- /dev/null
+++ b/roles/any.software.otter/files/otter.data.backup.sh
@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+data_dir='/mnt/data1/otter/data'
+snapshot_dir="${data_dir}.snapshot"
+
+# Read-only snapshot for atomic backup
+btrfs subvolume snapshot -r "$data_dir" "$snapshot_dir" || exit $?
+
+/usr/local/bin/restic backup "$snapshot_dir"
+
+# Always remove snapshot subvolume, even if restic fails
+btrfs subvolume delete "$snapshot_dir"
diff --git a/roles/any.software.otter/files/otter.service b/roles/any.software.otter/files/otter.service
new file mode 100644
index 0000000..97e93dc
--- /dev/null
+++ b/roles/any.software.otter/files/otter.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=Gpodder.net API implementation
+After=network.target network-online.target
+
+[Service]
+Type=exec
+User=otter
+Group=otter
+ExecStart=/usr/local/bin/otter serve -c /etc/otter/otter.toml
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
diff --git a/roles/any.software.otter/handlers/main.yml b/roles/any.software.otter/handlers/main.yml
new file mode 100644
index 0000000..c4bf72e
--- /dev/null
+++ b/roles/any.software.otter/handlers/main.yml
@@ -0,0 +1,5 @@
+---
+- name: 'restart otter'
+  ansible.builtin.service:
+    name: 'otter'
+    state: 'restarted'
diff --git a/roles/any.software.otter/meta/main.yml b/roles/any.software.otter/meta/main.yml
new file mode 100644
index 0000000..d620a12
--- /dev/null
+++ b/roles/any.software.otter/meta/main.yml
@@ -0,0 +1,3 @@
+---
+dependencies:
+  - role: any.tools.caddy
diff --git a/roles/any.software.otter/tasks/main.yml b/roles/any.software.otter/tasks/main.yml
new file mode 100644
index 0000000..ae71b52
--- /dev/null
+++ b/roles/any.software.otter/tasks/main.yml
@@ -0,0 +1,85 @@
+---
+- name: Ensure binary is present
+  ansible.builtin.get_url:
+    url: 'https://git.rustybever.be/api/packages/Chewing_Bever/generic/otter/0.3.0/otter-linux-amd64'
+    dest: '/usr/local/bin/otter'
+    owner: 'root'
+    group: 'root'
+    mode: '755'
+  notify: 'restart otter'
+
+- name: Ensure system group exists
+  ansible.builtin.group:
+    name: 'otter'
+    gid: 204
+    system: true
+    state: present
+
+- name: Ensure system user exists
+  ansible.builtin.user:
+    name: 'otter'
+    group: 'otter'
+    uid: 204
+    system: true
+    create_home: false
+
+- name: Ensure permissions are correct
+  ansible.builtin.file:
+    path: "{{ data_dir }}"
+    state: directory
+    mode: '0755'
+    owner: '204'
+    group: '204'
+
+- name: Ensure configuration directory is present
+  ansible.builtin.file:
+    path: '/etc/otter'
+    state: directory
+    mode: '0755'
+
+- name: Ensure config file is present
+  ansible.builtin.template:
+    src: 'otter.toml.j2'
+    dest: '/etc/otter/otter.toml'
+    mode: '0644'
+    owner: 'root'
+    group: 'root'
+  notify: 'restart otter'
+
+- name: Ensure Caddyfile is present
+  ansible.builtin.copy:
+    src: 'otter.Caddyfile'
+    dest: '/etc/caddy/otter.Caddyfile'
+    owner: root
+    group: root
+    mode: '0644'
+  notify: reload caddy
+
+# - name: Ensure backup scripts are present
+#   ansible.builtin.copy:
+#     src: "otter.{{ item }}.backup.sh"
+#     dest: "/etc/backups/otter.{{ item }}.backup.sh"
+#     owner: 'root'
+#     group: 'root'
+#     mode: '0644'
+#   loop:
+#     - 'data'
+
+- name: Ensure service file is present
+  ansible.builtin.copy:
+    src: 'otter.service'
+    dest: '/lib/systemd/system/otter.service'
+    owner: 'root'
+    group: 'root'
+    mode: '0644'
+  register: res
+
+- name: systemd-reload
+  ansible.builtin.systemd_service:
+    daemon_reload: true
+  when: 'res.changed'
+
+- name: Ensure otter service is enabled
+  ansible.builtin.service:
+    name: 'otter'
+    enabled: true
diff --git a/roles/any.software.otter/templates/otter.toml.j2 b/roles/any.software.otter/templates/otter.toml.j2
new file mode 100644
index 0000000..0affcac
--- /dev/null
+++ b/roles/any.software.otter/templates/otter.toml.j2
@@ -0,0 +1,7 @@
+data_dir = "{{ data_dir }}"
+log_level = "debug"
+
+[net]
+type = "tcp"
+domain = "0.0.0.0"
+port = 8017