diff --git a/CHANGELOG.md b/CHANGELOG.md
index 39d1fd8ae7b..52ef290901c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,17 @@
 # 2025-11-08
 
-Thanks to [Suguru Hirahara](https://github.com/luixxiul), the playbook now supports the [GearKite/MatrixZulipBridg](https://github.com/GearKite/MatrixZulipBridg) bridge for bridging Matrix to [Zulip](https://zulip.com/).
+## MatrixZulipBridge support
+
+Thanks to [Suguru Hirahara](https://github.com/luixxiul), the playbook now supports the [GearKite/MatrixZulipBridge](https://github.com/GearKite/MatrixZulipBridg) bridge for bridging Matrix to [Zulip](https://zulip.com/).
 
 To learn more, see our [Setting up Zulip bridging](docs/configuring-playbook-bridge-zulip.md) documentation page.
 
+## The Sliding Sync proxy has been removed from the playbook
+
+The [Sliding Sync proxy](./docs/configuring-playbook-sliding-sync-proxy.md) has been removed from the playbook, as it's been replaced with a different method (called Simplified Sliding Sync) integrated to newer homeservers by default (**Conduit** homeserver from version `0.6.0` or **Synapse** from version `1.114`).
+
+The playbook will let you know if you're using any `matrix_sliding_sync_*` variables. You'll need to remove them from `vars.yml` and potentially [uninstall the proxy manually](./docs/configuring-playbook-sliding-sync-proxy.md#uninstalling-the-proxy-manually).
+
 # 2025-11-07
 
 ## The matrix-chatgpt-bot has been removed from the playbook
diff --git a/README.md b/README.md
index 4fa5954a791..470afa455af 100644
--- a/README.md
+++ b/README.md
@@ -175,7 +175,6 @@ Various services that don't fit any other categories.
 
 | Name | Default? | Description | Documentation |
 | ---- | -------- | ----------- | ------------- |
-| [sliding-sync](https://github.com/matrix-org/sliding-sync)| ❌ | (Superseded by Simplified Sliding Sync integrated into Synapse > `1.114` and Conduit > `0.6.0`) Sliding Sync support for clients which require it (e.g. old Element X versions before Simplified Sliding Sync was developed) | [Link](docs/configuring-playbook-sliding-sync-proxy.md) |
 | [synapse_auto_accept_invite](https://github.com/matrix-org/synapse-auto-accept-invite) | ❌ | Synapse module to automatically accept invites | [Link](docs/configuring-playbook-synapse-auto-accept-invite.md) |
 | [synapse_auto_compressor](https://github.com/matrix-org/rust-synapse-compress-state/#automated-tool-synapse_auto_compressor) | ❌ | Cli tool that automatically compresses `state_groups` database table in background | [Link](docs/configuring-playbook-synapse-auto-compressor.md) |
 | [Matrix Corporal](https://github.com/devture/matrix-corporal) (advanced) | ❌ | Reconciliator and gateway for a managed Matrix server | [Link](docs/configuring-playbook-matrix-corporal.md) |
diff --git a/docs/configuring-playbook-sliding-sync-proxy.md b/docs/configuring-playbook-sliding-sync-proxy.md
index 38b1e815ebf..df368b5bf39 100644
--- a/docs/configuring-playbook-sliding-sync-proxy.md
+++ b/docs/configuring-playbook-sliding-sync-proxy.md
@@ -1,5 +1,10 @@
 <!--
-SPDX-FileCopyrightText: 2023 - 2024 Slavi Pantaleev
+SPDX-FileCopyrightText: 2019 - 2025 Slavi Pantaleev
+SPDX-FileCopyrightText: 2019 Eduardo Beltrame
+SPDX-FileCopyrightText: 2020 Tulir Asokan
+SPDX-FileCopyrightText: 2021 MDAD project contributors
+SPDX-FileCopyrightText: 2022 Dennis Ciba
+SPDX-FileCopyrightText: 2022 Vladimir Panteleev
 SPDX-FileCopyrightText: 2023 Justin Croonenberghs
 SPDX-FileCopyrightText: 2023 Kuba Orlik
 SPDX-FileCopyrightText: 2023 Pierre 'McFly' Marty
@@ -11,85 +16,18 @@ SPDX-FileCopyrightText: 2024 MDAD project contributors
 SPDX-License-Identifier: AGPL-3.0-or-later
 -->
 
-# Setting up the Sliding Sync proxy (optional)
+# Setting up the Sliding Sync proxy (optional, removed)
 
-**Note**: The sliding-sync proxy is **not required** anymore as it's been replaced with a different method (called Simplified Sliding Sync) which is integrated into newer homeservers by default (**Conduit** homeserver from version `0.6.0` or **Synapse** from version `1.114`). This component and documentation remain here for historical purposes, but **installing this old sliding-sync proxy is generally not recommended anymore**.
+🪦 The playbook used to be able to install and configure the [sliding-sync](https://github.com/matrix-org/sliding-sync) proxy, but no longer includes this component, as it's been replaced with a different method (called Simplified Sliding Sync) integrated to newer homeservers by default (**Conduit** homeserver from version `0.6.0` or **Synapse** from version `1.114`).
 
-The playbook can install and configure [sliding-sync](https://github.com/matrix-org/sliding-sync) proxy for you.
+## Uninstalling the proxy manually
 
-Sliding Sync is an implementation of [MSC3575](https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/sync-v3/proposals/3575-sync.md) and a prerequisite for running Element X clients ([Element X iOS](https://github.com/element-hq/element-x-ios) and [Element X Android](https://github.com/element-hq/element-x-android)). See the project's [documentation](https://github.com/matrix-org/sliding-sync) to learn more.
+If you still have the Sliding Sync proxy installed on your Matrix server, the playbook can no longer help you uninstall it and you will need to do it manually. To uninstall manually, run these commands on the server:
 
-## Adjusting DNS records (optional)
-
-By default, this playbook installs the Sliding Sync proxy on the `matrix.` subdomain, at the `/sliding-sync` path (https://matrix.example.com/sliding-sync). This makes it easy to install it, because it **doesn't require additional DNS records to be set up**. If that's okay, you can skip this section.
-
-If you wish to adjust it, see the section [below](#adjusting-the-sliding-sync-proxy-url-optional) for details about DNS configuration.
-
-## Adjusting the playbook configuration
-
-To enable Sliding Sync proxy, add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
-
-```yaml
-matrix_sliding_sync_enabled: true
-```
-
-### Adjusting the Sliding Sync proxy URL (optional)
-
-By tweaking the `matrix_sliding_sync_hostname` and `matrix_sliding_sync_path_prefix` variables, you can easily make the service available at a **different hostname and/or path** than the default one.
-
-Example additional configuration for your `vars.yml` file:
-
-```yaml
-# Change the default hostname and path prefix
-matrix_sliding_sync_hostname: ss.example.com
-matrix_sliding_sync_path_prefix: /
-```
-
-If you've changed the default hostname, you may need to create a CNAME record for the Sliding Sync proxy domain (`ss.example.com`), which targets `matrix.example.com`.
-
-When setting, replace `example.com` with your own.
-
-### Extending the configuration
-
-There are some additional things you may wish to configure about the component.
-
-Take a look at:
-
-- `roles/custom/matrix-sliding-sync/defaults/main.yml` for some variables that you can customize via your `vars.yml` file
-
-## Installing
-
-After configuring the playbook and potentially [adjusting your DNS records](#adjusting-dns-records), run the playbook with [playbook tags](playbook-tags.md) as below:
-
-<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
 ```sh
-ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,start
-```
-
-The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
-
-`just install-all` is useful for maintaining your setup quickly ([2x-5x faster](../CHANGELOG.md#2x-5x-performance-improvements-in-playbook-runtime) than `just setup-all`) when its components remain unchanged. If you adjust your `vars.yml` to remove other components, you'd need to run `just setup-all`, or these components will still remain installed. Note these shortcuts run the `ensure-matrix-users-created` tag too.
+systemctl disable --now matrix-sliding-sync.service
 
-### External databases
+rm -rf /matrix/sliding-sync
 
-Please note that, if your setup utilizes an external database, you must also establish configuration for the sliding sync proxy. Alter the defaults below to suit your configuration:
-
-```yaml
-matrix_sliding_sync_database_username: 'matrix_sliding_sync'
-matrix_sliding_sync_database_password: ''
-matrix_sliding_sync_database_hostname: ''
-matrix_sliding_sync_database_port: 5432
-matrix_sliding_sync_database_name: 'matrix_sliding_sync'
+/matrix/postgres/bin/cli-non-interactive 'DROP DATABASE matrix_sliding_sync;'
 ```
-
-## Usage
-
-You **don't need to do anything special** to make use of the Sliding Sync proxy. Simply open your client which supports Sliding Sync (like Element X) and log in.
-
-When the Sliding Sync proxy is [installed](#installing), your `/.well-known/matrix/client` file is also updated. A new `org.matrix.msc3575.proxy` section and `url` property are added there and made to point to your Sliding Sync proxy's base URL (e.g. `https://matrix.example.com/sliding-sync`).
-
-This allows clients which support Sliding Sync to detect the Sliding Sync proxy's URL and make use of it.
-
-## Troubleshooting
-
-As with all other services, you can find the logs in [systemd-journald](https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html) by logging in to the server with SSH and running `journalctl -fu matrix-sliding-sync`.
diff --git a/docs/container-images.md b/docs/container-images.md
index f7a54834306..1226d47f5f5 100644
--- a/docs/container-images.md
+++ b/docs/container-images.md
@@ -153,7 +153,6 @@ Various services that don't fit any other categories.
 
 | Service | Container image | Default? | Description |
 | ------- | --------------- | -------- | ----------- |
-| [sliding-sync](configuring-playbook-sliding-sync-proxy.md) | [matrix-org/sliding-sync](https://ghcr.io/matrix-org/sliding-sync) | ❌ | Sliding Sync support for clients which require it (like old Element X versions, before it got switched to Simplified Sliding Sync) |
 | [synapse_auto_accept_invite](configuring-playbook-synapse-auto-accept-invite.md) | (N/A) | ❌ | Synapse module to automatically accept invites |
 | [synapse_auto_compressor](configuring-playbook-synapse-auto-compressor.md) | [mb-saces/rust-synapse-tools](https://gitlab.com/mb-saces/rust-synapse-tools/container_registry) | ❌ | Cli tool that automatically compresses Synapse's `state_groups` database table in background |
 | [Matrix Corporal](configuring-playbook-matrix-corporal.md) (advanced) | [devture/matrix-corporal](https://hub.docker.com/r/devture/matrix-corporal/) | ❌ | Reconciliator and gateway for a managed Matrix server |
@@ -186,3 +185,4 @@ The list of the deprecated or unmaintained services is available [here](configur
 | [mx-puppet-instagram](configuring-playbook-bridge-mx-puppet-instagram.md) | [sorunome/mx-puppet-instagram](https://hub.docker.com/r/sorunome/mx-puppet-instagram) | ❌ | Bridge for Instagram-DMs ([Instagram](https://www.instagram.com/)) |
 | [mx-puppet-slack](configuring-playbook-bridge-mx-puppet-slack.md) | [mx-puppet/slack/mx-puppet-slack](https://gitlab.com/mx-puppet/slack/mx-puppet-slack/container_registry) | ❌ | Bridge to [Slack](https://slack.com) |
 | [mx-puppet-twitter](configuring-playbook-bridge-mx-puppet-twitter.md) | [sorunome/mx-puppet-twitter](https://hub.docker.com/r/sorunome/mx-puppet-twitter) | ❌ | Bridge for Twitter-DMs ([Twitter](https://twitter.com/)) |
+| [sliding-sync](configuring-playbook-sliding-sync-proxy.md) | [matrix-org/sliding-sync](https://ghcr.io/matrix-org/sliding-sync) | ❌ | Sliding Sync support for clients which require it (like old Element X versions, before it got switched to Simplified Sliding Sync) |
diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index d4f24739fd5..8850fcac744 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -230,9 +230,6 @@ matrix_addons_homeserver_container_network: "{{ matrix_playbook_reverse_proxy_co
 matrix_addons_homeserver_client_api_url: "{{ ('http://' + matrix_playbook_reverse_proxy_hostname + ':' + matrix_playbook_internal_matrix_client_api_traefik_entrypoint_port | string) if matrix_playbook_internal_matrix_client_api_traefik_entrypoint_enabled else matrix_homeserver_container_url }}"
 matrix_addons_homeserver_systemd_services_list: "{{ ([traefik_identifier + '.service'] if matrix_playbook_reverse_proxy_type == 'playbook-managed-traefik' else []) if matrix_playbook_internal_matrix_client_api_traefik_entrypoint_enabled else matrix_homeserver_systemd_services_list }}"
 
-# Starting from version `0.6.0` Conduit natively supports some sync v3 (sliding-sync) features.
-matrix_homeserver_sliding_sync_url: "{{ matrix_sliding_sync_base_url if matrix_sliding_sync_enabled else (matrix_homeserver_url if matrix_homeserver_implementation in ['conduit', 'conduwuit', 'continuwuity'] else '') }}"
-
 ########################################################################
 #                                                                      #
 # /base                                                                #
@@ -437,8 +434,6 @@ devture_systemd_service_manager_services_list_auto: |
     +
     ([{'name': 'matrix-registration.service', 'priority': 4000, 'groups': ['matrix', 'registration', 'matrix-registration']}] if matrix_registration_enabled else [])
     +
-    ([{'name': 'matrix-sliding-sync.service', 'priority': 1500, 'groups': ['matrix', 'sliding-sync']}] if matrix_sliding_sync_enabled else [])
-    +
     ([{'name': 'matrix-sygnal.service', 'priority': 800, 'groups': ['matrix', 'sygnal']}] if matrix_sygnal_enabled else [])
     +
     ([{'name': 'matrix-goofys.service', 'priority': 800, 'groups': ['matrix', 'goofys']}] if matrix_s3_media_store_enabled else [])
@@ -3988,12 +3983,6 @@ postgres_managed_databases_auto: |
       'password': matrix_authentication_service_config_database_password,
     }] if (matrix_authentication_service_enabled and matrix_authentication_service_config_database_host == postgres_connection_hostname) else [])
     +
-    ([{
-      'name': matrix_sliding_sync_database_name,
-      'username': matrix_sliding_sync_database_username,
-      'password': matrix_sliding_sync_database_password,
-    }] if (matrix_sliding_sync_enabled) else [])
-    +
     ([{
       'name': matrix_ma1sd_database_name,
       'username': matrix_ma1sd_database_username,
@@ -5515,73 +5504,6 @@ matrix_registration_database_password: "{{ '%s' | format(matrix_homeserver_gener
 #
 ######################################################################
 
-
-######################################################################
-#
-# matrix-sliding-sync
-#
-######################################################################
-
-# We don't enable the sliding sync proxy by default.
-matrix_sliding_sync_enabled: false
-
-matrix_sliding_sync_scheme: "{{ 'https' if matrix_playbook_ssl_enabled else 'http' }}"
-
-matrix_sliding_sync_hostname: "{{ matrix_server_fqn_matrix }}"
-
-matrix_sliding_sync_path_prefix: /sliding-sync
-
-matrix_sliding_sync_container_image_registry_prefix_upstream: "{{ matrix_container_global_registry_prefix_override if matrix_container_global_registry_prefix_override else matrix_sliding_sync_container_image_registry_prefix_upstream_default }}"
-
-matrix_sliding_sync_container_image_self_build: "{{ matrix_architecture not in ['amd64', 'arm64'] }}"
-
-matrix_sliding_sync_container_network: "{{ matrix_homeserver_container_network }}"
-
-matrix_sliding_sync_container_additional_networks: |
-  {{
-    (
-      ([matrix_playbook_reverse_proxyable_services_additional_network] if matrix_sliding_sync_container_labels_traefik_enabled and matrix_playbook_reverse_proxyable_services_additional_network else [])
-      +
-      ([] if matrix_homeserver_container_network in ['', matrix_sliding_sync_container_network] else [matrix_homeserver_container_network])
-      +
-      ([postgres_container_network] if postgres_enabled and postgres_container_network != matrix_sliding_sync_container_network else [])
-    ) | unique
-  }}
-
-matrix_sliding_sync_container_labels_traefik_enabled: "{{ matrix_playbook_reverse_proxy_type in ['playbook-managed-traefik', 'other-traefik-container'] }}"
-matrix_sliding_sync_container_labels_traefik_docker_network: "{{ matrix_playbook_reverse_proxyable_services_additional_network }}"
-matrix_sliding_sync_container_labels_traefik_entrypoints: "{{ traefik_entrypoint_primary }}"
-matrix_sliding_sync_container_labels_traefik_tls_certResolver: "{{ traefik_certResolver_primary }}"
-
-matrix_sliding_sync_container_labels_public_metrics_middleware_basic_auth_enabled: "{{ matrix_metrics_exposure_http_basic_auth_enabled }}"
-matrix_sliding_sync_container_labels_public_metrics_middleware_basic_auth_users: "{{ matrix_metrics_exposure_http_basic_auth_users }}"
-
-matrix_sliding_sync_systemd_required_services_list_auto: |
-  {{
-    matrix_homeserver_systemd_services_list
-    +
-    ([postgres_identifier ~ '.service'] if (postgres_enabled and matrix_sliding_sync_database_hostname == postgres_connection_hostname) else [])
-  }}
-
-matrix_sliding_sync_environment_variable_syncv3_server: "{{ matrix_homeserver_container_url }}"
-matrix_sliding_sync_environment_variable_syncv3_secret: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'ss.secret', rounds=655555) | to_uuid }}"
-
-matrix_sliding_sync_database_hostname: "{{ postgres_connection_hostname if postgres_enabled else '' }}"
-matrix_sliding_sync_database_password: "{{ '%s' | format(matrix_homeserver_generic_secret_key) | password_hash('sha512', 'ss.db', rounds=655555) | to_uuid }}"
-
-matrix_sliding_sync_metrics_enabled: "{{ prometheus_enabled or matrix_metrics_exposure_enabled }}"
-
-matrix_sliding_sync_metrics_proxying_enabled: "{{ matrix_sliding_sync_metrics_enabled and matrix_metrics_exposure_enabled }}"
-matrix_sliding_sync_metrics_proxying_hostname: "{{ matrix_metrics_exposure_hostname }}"
-matrix_sliding_sync_metrics_proxying_path_prefix: "{{ matrix_metrics_exposure_path_prefix }}/sliding-sync"
-
-#####################################################################
-#
-# /matrix-sliding-sync
-#
-######################################################################
-
-
 ######################################################################
 #
 # matrix-dendrite
@@ -5970,8 +5892,6 @@ matrix_static_files_container_labels_base_domain_root_path_redirection_url: "{{
 
 matrix_static_files_file_matrix_client_property_io_element_jitsi_preferred_domain: "{{ matrix_server_fqn_jitsi if jitsi_enabled else '' }}"
 
-matrix_static_files_file_matrix_client_property_org_matrix_msc3575_proxy_url: "{{ matrix_homeserver_sliding_sync_url }}"
-
 matrix_static_files_file_matrix_client_property_org_matrix_msc2965_authentication_enabled: "{{ matrix_authentication_service_enabled }}"
 matrix_static_files_file_matrix_client_property_org_matrix_msc2965_authentication_issuer: "{{ matrix_authentication_service_config_http_issuer if matrix_authentication_service_enabled else '' }}"
 matrix_static_files_file_matrix_client_property_org_matrix_msc2965_authentication_account: "{{ matrix_authentication_service_account_management_url if matrix_authentication_service_enabled else '' }}"
diff --git a/roles/custom/matrix-base/defaults/main.yml b/roles/custom/matrix-base/defaults/main.yml
index 5c6723926f0..7466b70e45e 100644
--- a/roles/custom/matrix-base/defaults/main.yml
+++ b/roles/custom/matrix-base/defaults/main.yml
@@ -231,12 +231,6 @@ matrix_homeserver_container_federation_url: "http://{{ matrix_homeserver_contain
 # This likely gets overridden elsewhere.
 matrix_homeserver_container_federation_api_endpoint: ""
 
-# Specifies the public url of the Sync v3 (sliding-sync) API.
-# This will be used to set the `org.matrix.msc3575.proxy` property in `/.well-known/matrix/client`.
-# Once the API is stabilized, this will no longer be required.
-# See MSC3575: https://github.com/matrix-org/matrix-spec-proposals/blob/kegan/sync-v3/proposals/3575-sync.md
-matrix_homeserver_sliding_sync_url: ""
-
 matrix_identity_server_url: ~
 
 matrix_integration_manager_rest_url: ~
diff --git a/roles/custom/matrix-sliding-sync/defaults/main.yml b/roles/custom/matrix-sliding-sync/defaults/main.yml
deleted file mode 100644
index 6e1e2c10fd5..00000000000
--- a/roles/custom/matrix-sliding-sync/defaults/main.yml
+++ /dev/null
@@ -1,137 +0,0 @@
-# SPDX-FileCopyrightText: 2023 - 2024 Slavi Pantaleev
-# SPDX-FileCopyrightText: 2023 David Mehren
-# SPDX-FileCopyrightText: 2023 Kabir Kwatra
-# SPDX-FileCopyrightText: 2023 Nikita Chernyi
-# SPDX-FileCopyrightText: 2023 Samuel Meenzen
-# SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
-# SPDX-FileCopyrightText: 2024 HarHarLinks
-# SPDX-FileCopyrightText: 2024 MDAD project contributors
-#
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
----
-
-# Sliding Sync proxy is an implementation of MSC3575 for the new sliding sync
-# Project source code URL: https://github.com/matrix-org/sliding-sync
-
-matrix_sliding_sync_enabled: true
-
-# renovate: datasource=docker depName=ghcr.io/matrix-org/sliding-sync
-matrix_sliding_sync_version: v0.99.19
-
-matrix_sliding_sync_scheme: https
-
-# The hostname at which sliding-sync is served.
-matrix_sliding_sync_hostname: ''
-
-# The path at which sliding-sync is served.
-# This value must either be `/` or not end with a slash (e.g. `/sliding-sync`).
-matrix_sliding_sync_path_prefix: /
-
-matrix_sliding_sync_base_path: "{{ matrix_base_data_path }}/sliding-sync"
-
-matrix_sliding_sync_container_image_self_build: false
-matrix_sliding_sync_container_image_self_build_repo: https://github.com/matrix-org/sliding-sync
-matrix_sliding_sync_container_image_self_build_repo_version: "{{ 'main' if matrix_sliding_sync_version == 'main' else matrix_sliding_sync_version }}"
-matrix_sliding_sync_container_src_path: "{{ matrix_sliding_sync_base_path }}/container-src"
-
-matrix_sliding_sync_container_image: "{{ matrix_sliding_sync_container_image_registry_prefix }}matrix-org/sliding-sync:{{ matrix_sliding_sync_container_image_tag }}"
-matrix_sliding_sync_container_image_registry_prefix: "{{ 'localhost/' if matrix_sliding_sync_container_image_self_build else matrix_sliding_sync_container_image_registry_prefix_upstream }}"
-matrix_sliding_sync_container_image_registry_prefix_upstream: "{{ matrix_sliding_sync_container_image_registry_prefix_upstream_default }}"
-matrix_sliding_sync_container_image_registry_prefix_upstream_default: "ghcr.io/"
-matrix_sliding_sync_container_image_tag: "{{ matrix_sliding_sync_version }}"
-matrix_sliding_sync_container_image_force_pull: "{{ matrix_sliding_sync_container_image.endswith(':main') }}"
-
-# The base container network. It will be auto-created by this role if it doesn't exist already.
-matrix_sliding_sync_container_network: ''
-
-# A list of additional container networks that the container would be connected to.
-# The role does not create these networks, so make sure they already exist.
-# Use this to expose this container to another reverse proxy, which runs in a different container network.
-matrix_sliding_sync_container_additional_networks: []
-
-# Enable the exposure of metrics to Prometheus
-# See https://github.com/matrix-org/sliding-sync/tree/main/grafana
-matrix_sliding_sync_metrics_enabled: false
-matrix_sliding_sync_metrics_port: 2112
-
-# Controls whether Sliding Sync metrics should be proxied (exposed) on `matrix.example.com/metrics/sliding-sync`
-matrix_sliding_sync_metrics_proxying_enabled: false
-matrix_sliding_sync_metrics_proxying_hostname: ''
-matrix_sliding_sync_metrics_proxying_path: /metrics/sliding-sync
-
-# matrix_sliding_sync_container_labels_traefik_enabled controls whether labels to assist a Traefik reverse-proxy will be attached to the container.
-# See `../templates/labels.j2` for details.
-#
-# To inject your own other container labels, see `matrix_sliding_sync_container_labels_additional_labels`.
-matrix_sliding_sync_container_labels_traefik_enabled: true
-matrix_sliding_sync_container_labels_traefik_docker_network: "{{ matrix_sliding_sync_container_network }}"
-matrix_sliding_sync_container_labels_traefik_hostname: "{{ matrix_sliding_sync_hostname }}"
-# The path prefix must either be `/` or not end with a slash (e.g. `/sliding-sync`).
-matrix_sliding_sync_container_labels_traefik_path_prefix: "{{ matrix_sliding_sync_path_prefix }}"
-matrix_sliding_sync_container_labels_traefik_rule: "Host(`{{ matrix_sliding_sync_container_labels_traefik_hostname }}`){% if matrix_sliding_sync_container_labels_traefik_path_prefix != '/' %} && PathPrefix(`{{ matrix_sliding_sync_container_labels_traefik_path_prefix }}`){% endif %}"
-matrix_sliding_sync_container_labels_traefik_priority: 0
-matrix_sliding_sync_container_labels_traefik_entrypoints: web-secure
-matrix_sliding_sync_container_labels_traefik_tls: "{{ matrix_sliding_sync_container_labels_traefik_entrypoints != 'web' }}"
-matrix_sliding_sync_container_labels_traefik_tls_certResolver: default  # noqa var-naming
-
-# Controls whether labels will be added that expose metrics (see `matrix_sliding_sync_metrics_proxying_enabled`) for Sliding Sync
-matrix_sliding_sync_container_labels_public_metrics_enabled: "{{ matrix_sliding_sync_metrics_enabled and matrix_sliding_sync_metrics_proxying_enabled }}"
-matrix_sliding_sync_container_labels_public_metrics_traefik_path: "{{ matrix_sliding_sync_metrics_proxying_path }}"
-matrix_sliding_sync_container_labels_public_metrics_traefik_rule: "Host(`{{ matrix_sliding_sync_metrics_proxying_hostname }}`) && Path(`{{ matrix_sliding_sync_container_labels_public_metrics_traefik_path }}`)"
-matrix_sliding_sync_container_labels_public_metrics_traefik_priority: 0
-matrix_sliding_sync_container_labels_public_metrics_traefik_entrypoints: "{{ matrix_sliding_sync_container_labels_traefik_entrypoints }}"
-matrix_sliding_sync_container_labels_public_metrics_traefik_tls: "{{ matrix_sliding_sync_container_labels_public_metrics_traefik_entrypoints != 'web' }}"
-matrix_sliding_sync_container_labels_public_metrics_traefik_tls_certResolver: "{{ matrix_sliding_sync_container_labels_traefik_tls_certResolver }}"  # noqa var-naming
-matrix_sliding_sync_container_labels_public_metrics_middleware_basic_auth_enabled: false
-# See: https://doc.traefik.io/traefik/middlewares/http/basicauth/#users
-matrix_sliding_sync_container_labels_public_metrics_middleware_basic_auth_users: ''
-
-# Controls which additional headers to attach to all HTTP responses.
-# To add your own headers, use `matrix_sliding_sync_container_labels_traefik_additional_response_headers_custom`
-matrix_sliding_sync_container_labels_traefik_additional_response_headers: "{{ matrix_sliding_sync_container_labels_traefik_additional_response_headers_auto | combine(matrix_sliding_sync_container_labels_traefik_additional_response_headers_custom) }}"
-matrix_sliding_sync_container_labels_traefik_additional_response_headers_auto: {}
-matrix_sliding_sync_container_labels_traefik_additional_response_headers_custom: {}
-
-# matrix_sliding_sync_container_labels_additional_labels contains a multiline string with additional labels to add to the container label file.
-# See `../templates/labels.j2` for details.
-#
-# Example:
-# matrix_sliding_sync_container_labels_additional_labels: |
-#   my.label=1
-#   another.label="here"
-matrix_sliding_sync_container_labels_additional_labels: ''
-
-# A list of extra arguments to pass to the container
-matrix_sliding_sync_container_extra_arguments: []
-
-# List of systemd services that matrix-sliding-sync.service depends on
-matrix_sliding_sync_systemd_required_services_list: "{{ matrix_sliding_sync_systemd_required_services_list_default + matrix_sliding_sync_systemd_required_services_list_auto + matrix_sliding_sync_systemd_required_services_list_custom }}"
-matrix_sliding_sync_systemd_required_services_list_default: "{{ [devture_systemd_docker_base_docker_service_name] if devture_systemd_docker_base_docker_service_name else [] }}"
-matrix_sliding_sync_systemd_required_services_list_auto: []
-matrix_sliding_sync_systemd_required_services_list_custom: []
-
-# List of systemd services that matrix-sliding-sync.service wants
-matrix_sliding_sync_systemd_wanted_services_list: []
-
-# Controls the SYNCV3_SERVER environment variable
-matrix_sliding_sync_environment_variable_syncv3_server: ""
-
-# Controls the SYNCV3_SECRET environment variable
-matrix_sliding_sync_environment_variable_syncv3_secret: ''
-
-# Controls the SYNCV3_DB environment variable
-matrix_sliding_sync_environment_variable_syncv3_db: 'user={{ matrix_sliding_sync_database_username }} password={{ matrix_sliding_sync_database_password }} host={{ matrix_sliding_sync_database_hostname }} port={{ matrix_sliding_sync_database_port }} dbname={{ matrix_sliding_sync_database_name }} sslmode={{ matrix_sliding_sync_database_sslmode }}'
-
-# Controls the SYNCV3_PROM environment variable
-matrix_sliding_sync_environment_variable_syncv3_prom: ':{{ matrix_sliding_sync_metrics_port }}'
-
-# Additional environment variables.
-matrix_sliding_sync_environment_variables_additional_variables: ''
-
-matrix_sliding_sync_database_username: 'matrix_sliding_sync'
-matrix_sliding_sync_database_password: ''
-matrix_sliding_sync_database_hostname: ''
-matrix_sliding_sync_database_port: 5432
-matrix_sliding_sync_database_name: 'matrix_sliding_sync'
-matrix_sliding_sync_database_sslmode: disable
diff --git a/roles/custom/matrix-sliding-sync/tasks/install.yml b/roles/custom/matrix-sliding-sync/tasks/install.yml
deleted file mode 100644
index 394091059aa..00000000000
--- a/roles/custom/matrix-sliding-sync/tasks/install.yml
+++ /dev/null
@@ -1,77 +0,0 @@
-# SPDX-FileCopyrightText: 2023 - 2024 Slavi Pantaleev
-# SPDX-FileCopyrightText: 2024 David Mehren
-#
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
----
-
-- name: Ensure matrix-sliding-sync paths exist
-  ansible.builtin.file:
-    path: "{{ item.path }}"
-    state: directory
-    mode: 0750
-    owner: "{{ matrix_user_name }}"
-    group: "{{ matrix_group_name }}"
-  with_items:
-    - path: "{{ matrix_sliding_sync_base_path }}"
-      when: true
-    - path: "{{ matrix_sliding_sync_container_src_path }}"
-      when: "{{ matrix_sliding_sync_container_image_self_build }}"
-  when: item.when | bool
-
-- name: Ensure matrix-sliding-sync support files installed
-  ansible.builtin.template:
-    src: "{{ role_path }}/templates/{{ item }}.j2"
-    dest: "{{ matrix_sliding_sync_base_path }}/{{ item }}"
-    mode: 0640
-    owner: "{{ matrix_user_name }}"
-    group: "{{ matrix_group_name }}"
-  with_items:
-    - env
-    - labels
-
-- name: Ensure matrix-sliding-sync container image is pulled
-  community.docker.docker_image:
-    name: "{{ matrix_sliding_sync_container_image }}"
-    source: "{{ 'pull' if ansible_version.major > 2 or ansible_version.minor > 7 else omit }}"
-    force_source: "{{ matrix_sliding_sync_container_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_sliding_sync_container_image_force_pull }}"
-  when: "not matrix_sliding_sync_container_image_self_build | bool"
-  register: result
-  retries: "{{ devture_playbook_help_container_retries_count }}"
-  delay: "{{ devture_playbook_help_container_retries_delay }}"
-  until: result is not failed
-
-- when: matrix_sliding_sync_container_image_self_build | bool
-  block:
-    - name: Ensure matrix-sliding-sync repository is present on self-build
-      ansible.builtin.git:
-        repo: "{{ matrix_sliding_sync_container_image_self_build_repo }}"
-        version: "{{ matrix_sliding_sync_container_image_self_build_repo_version }}"
-        dest: "{{ matrix_sliding_sync_container_src_path }}"
-        force: "yes"
-      become: true
-      become_user: "{{ matrix_user_name }}"
-      register: matrix_sliding_sync_git_pull_results
-
-    - name: Ensure matrix-sliding-sync container image is built
-      ansible.builtin.command:
-        cmd: |-
-          {{ devture_systemd_docker_base_host_command_docker }} buildx build
-          --tag={{ matrix_sliding_sync_container_image }}
-          --file={{ matrix_sliding_sync_container_src_path }}/Dockerfile
-          {{ matrix_sliding_sync_container_src_path }}
-      changed_when: true
-
-- name: Ensure matrix-sliding-sync container network is created
-  community.general.docker_network:
-    enable_ipv6: "{{ devture_systemd_docker_base_ipv6_enabled }}"
-    name: "{{ matrix_sliding_sync_container_network }}"
-    driver: bridge
-    driver_options: "{{ devture_systemd_docker_base_container_networks_driver_options }}"
-
-- name: Ensure matrix-sliding-sync.service installed
-  ansible.builtin.template:
-    src: "{{ role_path }}/templates/systemd/matrix-sliding-sync.service.j2"
-    dest: "{{ devture_systemd_docker_base_systemd_path }}/matrix-sliding-sync.service"
-    mode: 0644
diff --git a/roles/custom/matrix-sliding-sync/tasks/main.yml b/roles/custom/matrix-sliding-sync/tasks/main.yml
deleted file mode 100644
index ad97616b33e..00000000000
--- a/roles/custom/matrix-sliding-sync/tasks/main.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-# SPDX-FileCopyrightText: 2023 Slavi Pantaleev
-#
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
----
-
-- tags:
-    - setup-all
-    - setup-sliding-sync
-    - install-all
-    - install-sliding-sync
-  block:
-    - when: matrix_sliding_sync_enabled | bool
-      ansible.builtin.include_tasks: "{{ role_path }}/tasks/validate_config.yml"
-
-    - when: matrix_sliding_sync_enabled | bool
-      ansible.builtin.include_tasks: "{{ role_path }}/tasks/install.yml"
-
-- tags:
-    - setup-all
-    - setup-sliding-sync
-  block:
-    - when: not matrix_sliding_sync_enabled | bool
-      ansible.builtin.include_tasks: "{{ role_path }}/tasks/uninstall.yml"
diff --git a/roles/custom/matrix-sliding-sync/tasks/uninstall.yml b/roles/custom/matrix-sliding-sync/tasks/uninstall.yml
deleted file mode 100644
index 085b9c548eb..00000000000
--- a/roles/custom/matrix-sliding-sync/tasks/uninstall.yml
+++ /dev/null
@@ -1,29 +0,0 @@
-# SPDX-FileCopyrightText: 2023 Slavi Pantaleev
-#
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
----
-
-- name: Check existence of matrix-sliding-sync service
-  ansible.builtin.stat:
-    path: "{{ devture_systemd_docker_base_systemd_path }}/matrix-sliding-sync.service"
-  register: matrix_sliding_sync_service_stat
-
-- when: matrix_sliding_sync_service_stat.stat.exists | bool
-  block:
-    - name: Ensure matrix-sliding-sync is stopped
-      ansible.builtin.service:
-        name: matrix-sliding-sync
-        state: stopped
-        enabled: false
-        daemon_reload: true
-
-    - name: Ensure matrix-sliding-sync.service doesn't exist
-      ansible.builtin.file:
-        path: "{{ devture_systemd_docker_base_systemd_path }}/matrix-sliding-sync.service"
-        state: absent
-
-    - name: Ensure matrix-sliding-sync paths don't exist
-      ansible.builtin.file:
-        path: "{{ matrix_sliding_sync_base_path }}"
-        state: absent
diff --git a/roles/custom/matrix-sliding-sync/tasks/validate_config.yml b/roles/custom/matrix-sliding-sync/tasks/validate_config.yml
deleted file mode 100644
index a4d3d26b3ea..00000000000
--- a/roles/custom/matrix-sliding-sync/tasks/validate_config.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-# SPDX-FileCopyrightText: 2023 - 2024 Slavi Pantaleev
-# SPDX-FileCopyrightText: 2024 MDAD project contributors
-#
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
----
-- name: Fail if required matrix-sliding-sync settings not defined
-  ansible.builtin.fail:
-    msg: >
-      You need to define a required configuration setting (`{{ item.name }}`).
-  when: "item.when | bool and lookup('vars', item.name, default='') | string | length == 0"
-  with_items:
-    - {'name': 'matrix_sliding_sync_hostname', when: true}
-    - {'name': 'matrix_sliding_sync_path_prefix', when: true}
-    - {'name': 'matrix_sliding_sync_database_hostname', when: true}
-    - {'name': 'matrix_sliding_sync_environment_variable_syncv3_server', when: true}
-    - {'name': 'matrix_sliding_sync_environment_variable_syncv3_secret', when: true}
-    - {'name': 'matrix_sliding_sync_container_network', when: true}
-    - {'name': 'matrix_sliding_sync_metrics_proxying_hostname', when: "{{ matrix_sliding_sync_metrics_proxying_enabled }}"}
-    - {'name': 'matrix_sliding_sync_metrics_proxying_path_prefix', when: "{{ matrix_sliding_sync_metrics_proxying_enabled }}"}
-
-- name: (Deprecation) Catch and report renamed matrix-sliding-sync variables
-  ansible.builtin.fail:
-    msg: >-
-      The variable `{{ item.old }}` is deprecated. Please use `{{ item.new }}` instead.
-  when: "lookup('ansible.builtin.varnames', ('^' + item.old + '$'), wantlist=True) | length > 0"
-  with_items:
-    - {'old': 'matrix_sliding_sync_container_image_name_prefix', 'new': 'matrix_sliding_sync_container_image_registry_prefix'}
diff --git a/roles/custom/matrix-sliding-sync/templates/env.j2 b/roles/custom/matrix-sliding-sync/templates/env.j2
deleted file mode 100644
index 4a3a06dd419..00000000000
--- a/roles/custom/matrix-sliding-sync/templates/env.j2
+++ /dev/null
@@ -1,17 +0,0 @@
-{#
-SPDX-FileCopyrightText: 2023 Slavi Pantaleev
-SPDX-FileCopyrightText: 2024 MDAD project contributors
-
-SPDX-License-Identifier: AGPL-3.0-or-later
-#}
-
-SYNCV3_SERVER={{ matrix_sliding_sync_environment_variable_syncv3_server }}
-SYNCV3_SECRET={{ matrix_sliding_sync_environment_variable_syncv3_secret }}
-SYNCV3_BINDADDR=:8008
-SYNCV3_DB={{ matrix_sliding_sync_environment_variable_syncv3_db }}
-
-{% if matrix_sliding_sync_metrics_enabled %}
-SYNCV3_PROM={{ matrix_sliding_sync_environment_variable_syncv3_prom }}
-{% endif %}
-
-{{ matrix_sliding_sync_environment_variables_additional_variables }}
diff --git a/roles/custom/matrix-sliding-sync/templates/labels.j2 b/roles/custom/matrix-sliding-sync/templates/labels.j2
deleted file mode 100644
index e2c76c8a479..00000000000
--- a/roles/custom/matrix-sliding-sync/templates/labels.j2
+++ /dev/null
@@ -1,84 +0,0 @@
-{#
-SPDX-FileCopyrightText: 2023 - 2024 Slavi Pantaleev
-SPDX-FileCopyrightText: 2024 MDAD project contributors
-
-SPDX-License-Identifier: AGPL-3.0-or-later
-#}
-
-{% if matrix_sliding_sync_container_labels_traefik_enabled %}
-traefik.enable=true
-
-{% if matrix_sliding_sync_container_labels_traefik_docker_network %}
-traefik.docker.network={{ matrix_sliding_sync_container_labels_traefik_docker_network }}
-{% endif %}
-
-traefik.http.services.matrix-sliding-sync.loadbalancer.server.port=8008
-traefik.http.services.matrix-sliding-sync-metrics.loadbalancer.server.port={{ matrix_sliding_sync_metrics_port }}
-
-{% set middlewares = [] %}
-
-{% if matrix_sliding_sync_container_labels_traefik_path_prefix != '/' %}
-traefik.http.middlewares.matrix-sliding-sync-slashless-redirect.redirectregex.regex=({{ matrix_sliding_sync_container_labels_traefik_path_prefix | quote }})$
-traefik.http.middlewares.matrix-sliding-sync-slashless-redirect.redirectregex.replacement=${1}/
-{% set middlewares = middlewares + ['matrix-sliding-sync-slashless-redirect'] %}
-{% endif %}
-
-{% if matrix_sliding_sync_container_labels_traefik_path_prefix != '/' %}
-traefik.http.middlewares.matrix-sliding-sync-strip-prefix.stripprefix.prefixes={{ matrix_sliding_sync_container_labels_traefik_path_prefix }}
-{% set middlewares = middlewares + ['matrix-sliding-sync-strip-prefix'] %}
-{% endif %}
-
-{% if matrix_sliding_sync_container_labels_traefik_additional_response_headers.keys() | length > 0 %}
-{% for name, value in matrix_sliding_sync_container_labels_traefik_additional_response_headers.items() %}
-traefik.http.middlewares.matrix-sliding-sync-add-headers.headers.customresponseheaders.{{ name }}={{ value }}
-{% endfor %}
-{% set middlewares = middlewares + ['matrix-sliding-sync-add-headers'] %}
-{% endif %}
-
-traefik.http.routers.matrix-sliding-sync.rule={{ matrix_sliding_sync_container_labels_traefik_rule }}
-{% if matrix_sliding_sync_container_labels_traefik_priority | int > 0 %}
-traefik.http.routers.matrix-sliding-sync.priority={{ matrix_sliding_sync_container_labels_traefik_priority }}
-{% endif %}
-traefik.http.routers.matrix-sliding-sync.service=matrix-sliding-sync
-{% if middlewares | length > 0 %}
-traefik.http.routers.matrix-sliding-sync.middlewares={{ middlewares | join(',') }}
-{% endif %}
-traefik.http.routers.matrix-sliding-sync.entrypoints={{ matrix_sliding_sync_container_labels_traefik_entrypoints }}
-traefik.http.routers.matrix-sliding-sync.tls={{ matrix_sliding_sync_container_labels_traefik_tls | to_json }}
-{% if matrix_sliding_sync_container_labels_traefik_tls %}
-traefik.http.routers.matrix-sliding-sync.tls.certResolver={{ matrix_sliding_sync_container_labels_traefik_tls_certResolver }}
-{% endif %}
-
-{% if matrix_sliding_sync_container_labels_public_metrics_enabled %}
-{% set metrics_middlewares = [] %}
-
-{% if matrix_sliding_sync_container_labels_public_metrics_middleware_basic_auth_enabled %}
-{% set metrics_middlewares = metrics_middlewares + ['matrix-sliding-sync-metrics-basic-auth'] %}
-traefik.http.middlewares.matrix-sliding-sync-metrics-basic-auth.basicauth.users={{ matrix_sliding_sync_container_labels_public_metrics_middleware_basic_auth_users }}
-{% endif %}
-
-{% set metrics_middlewares = metrics_middlewares + ['matrix-sliding-sync-metrics-replacepath'] %}
-traefik.http.middlewares.matrix-sliding-sync-metrics-replacepath.replacepath.path=/metrics
-
-traefik.http.routers.matrix-sliding-sync-metrics.rule={{ matrix_sliding_sync_container_labels_public_metrics_traefik_rule }}
-
-{% if metrics_middlewares | length > 0 %}
-traefik.http.routers.matrix-sliding-sync-metrics.middlewares={{ metrics_middlewares | join(',') }}
-{% endif %}
-
-{% if matrix_sliding_sync_container_labels_public_metrics_traefik_priority | int > 0 %}
-traefik.http.routers.matrix-sliding-sync-metrics.priority={{ matrix_sliding_sync_container_labels_public_metrics_traefik_priority }}
-{% endif %}
-
-traefik.http.routers.matrix-sliding-sync-metrics.service=matrix-sliding-sync-metrics
-traefik.http.routers.matrix-sliding-sync-metrics.entrypoints={{ matrix_sliding_sync_container_labels_public_metrics_traefik_entrypoints }}
-
-traefik.http.routers.matrix-sliding-sync-metrics.tls={{ matrix_sliding_sync_container_labels_public_metrics_traefik_tls | to_json }}
-{% if matrix_sliding_sync_container_labels_public_metrics_traefik_tls %}
-traefik.http.routers.matrix-sliding-sync-metrics.tls.certResolver={{ matrix_sliding_sync_container_labels_public_metrics_traefik_tls_certResolver }}
-{% endif %}
-{% endif %}
-
-{% endif %}
-
-{{ matrix_sliding_sync_container_labels_additional_labels }}
diff --git a/roles/custom/matrix-sliding-sync/templates/systemd/matrix-sliding-sync.service.j2 b/roles/custom/matrix-sliding-sync/templates/systemd/matrix-sliding-sync.service.j2
deleted file mode 100644
index aba4d6a49f0..00000000000
--- a/roles/custom/matrix-sliding-sync/templates/systemd/matrix-sliding-sync.service.j2
+++ /dev/null
@@ -1,49 +0,0 @@
-#jinja2: lstrip_blocks: True
-[Unit]
-Description=matrix-sliding-sync
-{% for service in matrix_sliding_sync_systemd_required_services_list %}
-Requires={{ service }}
-After={{ service }}
-{% endfor %}
-{% for service in matrix_sliding_sync_systemd_wanted_services_list %}
-Wants={{ service }}
-{% endfor %}
-DefaultDependencies=no
-
-[Service]
-Type=simple
-Environment="HOME={{ devture_systemd_docker_base_systemd_unit_home_path }}"
-ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} stop -t {{ devture_systemd_docker_base_container_stop_grace_time_seconds }} matrix-sliding-sync 2>/dev/null || true'
-ExecStartPre=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-sliding-sync 2>/dev/null || true'
-
-ExecStartPre={{ devture_systemd_docker_base_host_command_docker }} create \
-			--rm \
-			--name=matrix-sliding-sync \
-			--log-driver=none \
-			--user={{ matrix_user_uid }}:{{ matrix_user_gid }} \
-			--cap-drop=ALL \
-			--read-only \
-			--tmpfs /tmp \
-			--network={{ matrix_sliding_sync_container_network }} \
-			--env-file={{ matrix_sliding_sync_base_path }}/env \
-			--label-file={{ matrix_sliding_sync_base_path }}/labels \
-			{% for arg in matrix_sliding_sync_container_extra_arguments %}
-			{{ arg }} \
-			{% endfor %}
-			{{ matrix_sliding_sync_container_image }}
-
-{% for network in matrix_sliding_sync_container_additional_networks %}
-ExecStartPre={{ devture_systemd_docker_base_host_command_docker }} network connect {{ network }} matrix-sliding-sync
-{% endfor %}
-
-ExecStart={{ devture_systemd_docker_base_host_command_docker }} start --attach matrix-sliding-sync
-
-ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} stop -t {{ devture_systemd_docker_base_container_stop_grace_time_seconds }} matrix-sliding-sync 2>/dev/null || true'
-ExecStop=-{{ devture_systemd_docker_base_host_command_sh }} -c '{{ devture_systemd_docker_base_host_command_docker }} rm matrix-sliding-sync 2>/dev/null || true'
-
-Restart=always
-RestartSec=30
-SyslogIdentifier=matrix-sliding-sync
-
-[Install]
-WantedBy=multi-user.target
diff --git a/roles/custom/matrix-sliding-sync/templates/systemd/matrix-sliding-sync.service.j2.license b/roles/custom/matrix-sliding-sync/templates/systemd/matrix-sliding-sync.service.j2.license
deleted file mode 100644
index 97357d3effc..00000000000
--- a/roles/custom/matrix-sliding-sync/templates/systemd/matrix-sliding-sync.service.j2.license
+++ /dev/null
@@ -1,3 +0,0 @@
-SPDX-FileCopyrightText: 2023 - 2025 Slavi Pantaleev
-
-SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/roles/custom/matrix-sliding-sync/vars/main.yml b/roles/custom/matrix-sliding-sync/vars/main.yml
deleted file mode 100644
index 50fc46bf1bd..00000000000
--- a/roles/custom/matrix-sliding-sync/vars/main.yml
+++ /dev/null
@@ -1,9 +0,0 @@
-# SPDX-FileCopyrightText: 2023 Slavi Pantaleev
-#
-# SPDX-License-Identifier: AGPL-3.0-or-later
-
----
-
-# Public facing base URL of the Sliding Sync service.
-# It should not end with a slash.
-matrix_sliding_sync_base_url: "{{ matrix_sliding_sync_scheme }}://{{ matrix_sliding_sync_hostname }}{{ '' if matrix_sliding_sync_path_prefix == '/' else matrix_sliding_sync_path_prefix }}"
diff --git a/roles/custom/matrix_playbook_migration/tasks/validate_config.yml b/roles/custom/matrix_playbook_migration/tasks/validate_config.yml
index 29ca8bafbc2..ea146e96e91 100644
--- a/roles/custom/matrix_playbook_migration/tasks/validate_config.yml
+++ b/roles/custom/matrix_playbook_migration/tasks/validate_config.yml
@@ -630,3 +630,15 @@
 
       The following variables in your configuration need to be removed: {{ lookup('ansible.builtin.varnames', '^matrix_go_skype_bridge_.+', wantlist=True) | join(', ') }}
   when: "lookup('ansible.builtin.varnames', '^matrix_go_skype_bridge_.+', wantlist=True) | length > 0"
+
+- name: (Deprecation) Catch and report the Sliding Sync proxy variables
+  ansible.builtin.fail:
+    msg: |-
+      The Sliding Sync proxy was completely removed from the playbook in November 2025.
+
+      Please remove all `matrix_sliding_sync_*` variables from your configuration file (vars.yml).
+
+      You may also wish to uninstall the proxy manually. See `docs/configuring-playbook-sliding-sync-proxy.md` for more information.
+
+      The following variables in your configuration need to be removed: {{ lookup('ansible.builtin.varnames', '^matrix_sliding_sync_.+', wantlist=True) | join(', ') }}
+  when: "lookup('ansible.builtin.varnames', '^matrix_sliding_sync_.+', wantlist=True) | length > 0"
diff --git a/setup.yml b/setup.yml
index e4547d21232..8da3b370b07 100644
--- a/setup.yml
+++ b/setup.yml
@@ -122,7 +122,6 @@
     - custom/matrix-ma1sd
     - custom/matrix-dimension
     - galaxy/etherpad
-    - custom/matrix-sliding-sync
     - custom/matrix-sygnal
     - galaxy/ntfy
     - custom/matrix-static-files