diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index 09253dae7..c90654204 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -262,6 +262,7 @@ matrix_mautrix_hangouts_database_password: "{{ matrix_synapse_macaroon_secret_ke
 #
 ######################################################################
 
+# We don't enable bridges by default.
 matrix_mautrix_signal_enabled: false
 
 # TODO: unclear whether to put this into the role or keep it here
@@ -271,7 +272,9 @@ matrix_mautrix_signal_systemd_required_services_list: |
     +
     (['matrix-synapse.service'] if matrix_synapse_enabled else [])
     +
-    ['matrix-mautrix-signal-daemon.service', 'matrix-mautrix-signal-db.service']
+    (['matrix-postgres.service'] if matrix_postgres_enabled else [])
+    +
+    ['matrix-mautrix-signal-daemon.service']
   }}
 
 matrix_mautrix_signal_homeserver_domain: '{{ matrix_domain }}'
@@ -284,9 +287,9 @@ matrix_mautrix_signal_appservice_token: "{{ matrix_synapse_macaroon_secret_key |
 
 matrix_mautrix_signal_login_shared_secret: "{{ matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret if matrix_synapse_ext_password_provider_shared_secret_auth_enabled else '' }}"
 
-matrix_mautrix_signal_db_user: 'signal-db-user'
-matrix_mautrix_signal_db_password: 'signal-db-password'
-matrix_mautrix_signal_db_database: 'signal-db'
+matrix_mautrix_signal_database_engine: 'postgres'
+matrix_mautrix_signal_database_password: "{{ matrix_synapse_macaroon_secret_key | password_hash('sha512', 'mau.signal.db') | to_uuid }}" 
+
 
 ######################################################################
 #
@@ -1069,6 +1072,12 @@ matrix_postgres_additional_databases: |
       'password': matrix_mautrix_hangouts_database_password,
     }] if (matrix_mautrix_hangouts_enabled and matrix_mautrix_hangouts_database_engine == 'postgres' and matrix_mautrix_hangouts_database_hostname == 'matrix-postgres') else [])
     +
+    ([{
+      'name': matrix_mautrix_signal_database_name, 
+      'username': matrix_mautrix_signal_database_username, 
+      'password': matrix_mautrix_signal_database_password, 
+    }] if (matrix_mautrix_signal_enabled and matrix_mautrix_signal_database_engine == 'postgres' and matrix_mautrix_signal_database_hostname == 'matrix-postgres') else [])
+    +
     ([{
       'name': matrix_mautrix_telegram_database_name,
       'username': matrix_mautrix_telegram_database_username,
diff --git a/roles/matrix-bridge-mautrix-signal/defaults/main.yml b/roles/matrix-bridge-mautrix-signal/defaults/main.yml
index 5d6bb7d3f..d26513df0 100644
--- a/roles/matrix-bridge-mautrix-signal/defaults/main.yml
+++ b/roles/matrix-bridge-mautrix-signal/defaults/main.yml
@@ -30,9 +30,7 @@ matrix_mautrix_signal_container_extra_arguments: []
 # TODO: unclear whether to put this into group_vars or keep it here
 matrix_mautrix_signal_systemd_required_services_list:
   - 'docker.service'
-  - "{{ 'matrix-synapse.service' if matrix_synapse_enabled else [] }}"
   - 'matrix-mautrix-signal-daemon.service'
-  - 'matrix-mautrix-signal-db.service'
 
 # List of systemd services that matrix-mautrix-signal.service wants
 matrix_mautrix_signal_systemd_wanted_services_list: []
@@ -40,17 +38,25 @@ matrix_mautrix_signal_systemd_wanted_services_list: []
 matrix_mautrix_signal_appservice_token: ''
 matrix_mautrix_signal_homeserver_token: ''
 
-matrix_mautrix_signal_db_docker_image: "postgres:13.0-alpine"
-matrix_mautrix_signal_db_docker_image_force_pull: "{{ matrix_mautrix_signal_db_docker_image.endswith(':latest') }}"
-matrix_mautrix_signal_db_storage_path: "{{ matrix_mautrix_signal_base_path }}/database"
+# Database-related configuration fields
+#
+# This bridge only supports postgres. 
+#
+matrix_mautrix_signal_database_engine: 'postgres'
 
-matrix_mautrix_signal_db_user: ''
-matrix_mautrix_signal_db_password: ''
-matrix_mautrix_signal_db_host: 'matrix-mautrix-signal-db'
-matrix_mautrix_signal_db_port: '5432'
-matrix_mautrix_signal_db_database: ''
+matrix_mautrix_signal_database_username: 'matrix_mautrix_signal'
+matrix_mautrix_signal_database_password: 'some-password'
+matrix_mautrix_signal_database_hostname: 'matrix-postgres'
+matrix_mautrix_signal_database_port: 5432
+matrix_mautrix_signal_database_name: 'matrix_mautrix_signal'
 
-matrix_mautrix_signal_db_url: "postgres://{{ matrix_mautrix_signal_db_user }}:{{ matrix_mautrix_signal_db_password }}@{{ matrix_mautrix_signal_db_host }}:{{ matrix_mautrix_signal_db_port }}/{{ matrix_mautrix_signal_db_database }}"
+matrix_mautrix_signal_database_connection_string: 'postgres://{{ matrix_mautrix_signal_database_username }}:{{ matrix_mautrix_signal_database_password }}@{{ matrix_mautrix_signal_database_hostname }}:{{ matrix_mautrix_signal_database_port }}/{{ matrix_mautrix_signal_database_name }}' 
+
+matrix_mautrix_signal_appservice_database: "{{ 
+ 	{ 
+ 		'postgres': matrix_mautrix_facebook_database_connection_string, 
+ 	}[matrix_mautrix_signal_database_engine] 
+ }}" 
 
 # Can be set to enable automatic double-puppeting via Shared Secret Auth (https://github.com/devture/matrix-synapse-shared-secret-auth).
 matrix_mautrix_signal_login_shared_secret: ''
diff --git a/roles/matrix-bridge-mautrix-signal/tasks/setup_install.yml b/roles/matrix-bridge-mautrix-signal/tasks/setup_install.yml
index 16b68d250..9b0499877 100644
--- a/roles/matrix-bridge-mautrix-signal/tasks/setup_install.yml
+++ b/roles/matrix-bridge-mautrix-signal/tasks/setup_install.yml
@@ -22,13 +22,6 @@
     force_source: "{{ matrix_mautrix_signal_daemon_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
     force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_mautrix_signal_docker_image_force_pull }}"
 
-- name: Ensure Mautrix Signal database image is pulled
-  docker_image:
-    name: "{{ matrix_mautrix_signal_db_docker_image }}"
-    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
-    force_source: "{{ matrix_mautrix_signal_db_docker_image_force_pull if ansible_version.major > 2 or ansible_version.minor >= 8 else omit }}"
-    force: "{{ omit if ansible_version.major > 2 or ansible_version.minor >= 8 else matrix_mautrix_signal_docker_image_force_pull }}"
-
 - name: Ensure Mautrix Signal paths exist
   file:
     path: "{{ item }}"
@@ -40,7 +33,6 @@
     - "{{ matrix_mautrix_signal_base_path }}"
     - "{{ matrix_mautrix_signal_config_path }}"
     - "{{ matrix_mautrix_signal_daemon_path }}"
-    - "{{ matrix_mautrix_signal_db_storage_path }}"
 
 - name: Ensure mautrix-signal config.yaml installed
   copy:
@@ -65,13 +57,6 @@
     mode: 0644
   register: matrix_mautrix_signal_daemon_systemd_service_result
 
-- name: Ensure matrix-mautrix-signal-db.service installed
-  template:
-    src: "{{ role_path }}/templates/systemd/matrix-mautrix-signal-db.service.j2"
-    dest: "{{ matrix_systemd_path }}/matrix-mautrix-signal-db.service"
-    mode: 0644
-  register: matrix_mautrix_signal_db_systemd_service_result
-
 - name: Ensure matrix-mautrix-signal.service installed
   template:
     src: "{{ role_path }}/templates/systemd/matrix-mautrix-signal.service.j2"
@@ -82,4 +67,4 @@
 - name: Ensure systemd reloaded after matrix-mautrix-signal.service installation
   service:
     daemon_reload: yes
-  when: "matrix_mautrix_signal_systemd_service_result.changed or matrix_mautrix_signal_daemon_systemd_service_result.changed or matrix_mautrix_signal_db_systemd_service_result.changed"
+  when: "matrix_mautrix_signal_systemd_service_result.changed or matrix_mautrix_signal_daemon_systemd_service_result.changed"
diff --git a/roles/matrix-bridge-mautrix-signal/tasks/setup_uninstall.yml b/roles/matrix-bridge-mautrix-signal/tasks/setup_uninstall.yml
index 51581874c..2ca6a9a9f 100644
--- a/roles/matrix-bridge-mautrix-signal/tasks/setup_uninstall.yml
+++ b/roles/matrix-bridge-mautrix-signal/tasks/setup_uninstall.yml
@@ -1,24 +1,5 @@
 ---
 
-# Signal database service
-- name: Check existence of matrix-mautrix-signal-db service
-  stat:
-    path: "{{ matrix_systemd_path }}/matrix-mautrix-signal-db.service"
-  register: matrix_mautrix_signal_db_service_stat
-
-- name: Ensure matrix-mautrix-signal-db is stopped
-  service:
-    name: matrix-mautrix-signal-db
-    state: stopped
-    daemon_reload: yes
-  when: "matrix_mautrix_signal_db_service_stat.stat.exists"
-
-- name: Ensure matrix-mautrix-signal-db.service doesn't exist
-  file:
-    path: "{{ matrix_systemd_path }}/matrix-mautrix-signal-db.service"
-    state: absent
-  when: "matrix_mautrix_signal_db_service_stat.stat.exists"
-
 # Signal daemon service
 - name: Check existence of matrix-mautrix-signal-daemon service
   stat:
@@ -61,4 +42,4 @@
 - name: Ensure systemd reloaded after matrix-mautrix-signal_X.service removal
   service:
     daemon_reload: yes
-  when: "matrix_mautrix_signal_service_stat.stat.exists or matrix_mautrix_signal_daemon_service_stat.stat.exists or matrix_mautrix_signal_db_service_stat.stat.exists"
+  when: "matrix_mautrix_signal_service_stat.stat.exists or matrix_mautrix_signal_daemon_service_stat.stat.exists"
diff --git a/roles/matrix-bridge-mautrix-signal/tasks/validate_config.yml b/roles/matrix-bridge-mautrix-signal/tasks/validate_config.yml
index 6663c641c..397ef4d87 100644
--- a/roles/matrix-bridge-mautrix-signal/tasks/validate_config.yml
+++ b/roles/matrix-bridge-mautrix-signal/tasks/validate_config.yml
@@ -10,9 +10,6 @@
     - "matrix_mautrix_signal_homeserver_address"
     - "matrix_mautrix_signal_homeserver_token"
     - "matrix_mautrix_signal_appservice_token"
-    - "matrix_mautrix_signal_db_user"
-    - "matrix_mautrix_signal_db_password"
-    - "matrix_mautrix_signal_db_database"
 
 - name: (Deprecation) Catch and report renamed Signal variables
   fail:
@@ -22,3 +19,9 @@
   when: "item.old in vars"
   with_items:
     - {'old': 'matrix_mautrix_signal_container_exposed_port_number', 'new': '<superseded by matrix_mautrix_signal_container_http_host_bind_port>'}
+    - {'old': 'matrix_mautrix_signal_db_user', 'new': 'matrix_mautrix_signal_database_username'}
+    - {'old': 'matrix_mautrix_signal_db_password', 'new': 'matrix_mautrix_signal_database_password'}
+    - {'old': 'matrix_mautrix_signal_db_database', 'new': 'matrix_mautrix_signal_database_name'}
+    - {'old': 'matrix_mautrix_signal_db_host', 'new': 'matrix_mautrix_signal_database_hostname'}
+    - {'old': 'matrix_mautrix_signal_db_port', 'new': 'matrix_mautrix_signal_database_port'}
+    - {'old': 'matrix_mautrix_signal_db_url', 'new': 'matrix_mautrix_signal_database_connection_string'}
diff --git a/roles/matrix-bridge-mautrix-signal/templates/config.yaml.j2 b/roles/matrix-bridge-mautrix-signal/templates/config.yaml.j2
index ec2a4764e..64a820b55 100644
--- a/roles/matrix-bridge-mautrix-signal/templates/config.yaml.j2
+++ b/roles/matrix-bridge-mautrix-signal/templates/config.yaml.j2
@@ -27,7 +27,7 @@ appservice:
     max_body_size: 1
 
     # The full URI to the database. Only Postgres is currently supported.
-    database: {{ matrix_mautrix_signal_db_url }}
+    database: {{ matrix_mautrix_signal_database_connection_string }}
 
     # Provisioning API part of the web server for automated portal creation and fetching information.
     # Used by things like mautrix-manager (https://github.com/tulir/mautrix-manager).
diff --git a/roles/matrix-bridge-mautrix-signal/templates/systemd/matrix-mautrix-signal-db.service.j2 b/roles/matrix-bridge-mautrix-signal/templates/systemd/matrix-mautrix-signal-db.service.j2
deleted file mode 100644
index b4baed4c0..000000000
--- a/roles/matrix-bridge-mautrix-signal/templates/systemd/matrix-mautrix-signal-db.service.j2
+++ /dev/null
@@ -1,33 +0,0 @@
-#jinja2: lstrip_blocks: "True"
-[Unit]
-Description=Matrix Mautrix Signal database server
-
-[Service]
-Type=simple
-
-ExecStartPre=-{{ matrix_host_command_docker }} kill {{ matrix_mautrix_signal_db_host }}
-ExecStartPre=-{{ matrix_host_command_docker }} rm {{ matrix_mautrix_signal_db_host }}
-
-# Intentional delay, so that the homeserver (we likely depend on) can manage to start.
-ExecStartPre={{ matrix_host_command_sleep }} 5
-
-ExecStart={{ matrix_host_command_docker }} run --rm --name {{ matrix_mautrix_signal_db_host }} \
-			--log-driver=none \
-			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
-			--network={{ matrix_docker_network }} \
-			--env POSTGRES_USER={{ matrix_mautrix_signal_db_user }} \
-			--env POSTGRES_PASSWORD={{ matrix_mautrix_signal_db_password }} \
-			--env POSTGRES_DB={{ matrix_mautrix_signal_db_database }} \
-			-v {{ matrix_mautrix_signal_db_storage_path }}:/var/lib/postgresql/data:z \
-			-v /etc/passwd:/etc/passwd:ro \
-			{{ matrix_mautrix_signal_db_docker_image }}
-
-ExecStop=-{{ matrix_host_command_docker }} kill {{ matrix_mautrix_signal_db_host }}
-ExecStop=-{{ matrix_host_command_docker }} rm {{ matrix_mautrix_signal_db_host }}
-
-Restart=always
-RestartSec=30
-SyslogIdentifier=matrix-mautrix-signal-db
-
-[Install]
-WantedBy=multi-user.target