docs: add AWS DMS to replication instructions (#40859)

apps/docs/content/guides/database/postgres/setup-replication-external.mdx

@@ -23,11 +23,11 @@ CREATE PUBLICATION example_pub;
 select pg_create_logical_replication_slot('example_slot', 'pgoutput');
 ```
 
-3. Now we will connect to our **external database** and subscribe to our `publication` Note: ):
+3. Now connect to your **external database** and subscribe to the `publication`
 
-<Admonition type="note">
+<Admonition type="caution">
 
-This will need a **direct** connection (not a Connection Pooler) to your database and you can find the connection info in the [**Connect** panel](/dashboard/project/_?showConnect=true) in the `Direct connection` section.
+This needs a **direct** connection (not a Connection Pooler) to your database and you can find the connection info in the [**Connect** panel](/dashboard/project/_?showConnect=true) in the `Direct connection` section.
 
 You will also need to ensure that IPv6 is supported by your replication destination (or you can enable the [IPv4 add-on](/docs/guides/platform/ipv4-address))
 
@@ -42,6 +42,13 @@ PUBLICATION example_pub
 WITH (copy_data = true, create_slot=false, slot_name=example_slot);
 ```
 
+<Admonition type="tip">
+
+For projects running Postgres 17+, it is possible to subscribe to a [Read
+Replica](/docs/guides/platform/read-replicas) by using your Read Replica's connection string.
+
+</Admonition>
+
 <Admonition type="note">
 
 `create_slot` is set to `false` because `slot_name` is provided and the slot was already created in Step 2.

apps/docs/content/guides/database/replication/manual-replication-setup.mdx

@@ -6,7 +6,7 @@ subtitle: 'Set up replication with Airbyte, Estuary, Fivetran, and other tools.'
 sidebar_label: 'Setting up'
 ---
 
-This guide covers setting up **manual replication** using external tools. If you prefer a simpler, managed solution, see [Replication](/docs/guides/database/replication/replication-setup) instead.
+This guide covers setting up **manual logical replication** using external tools. If you prefer a simpler, managed solution, read [the Replication setup docs](/docs/guides/database/replication/replication-setup) instead.
 
 <Admonition type="note">
 
@@ -92,4 +92,19 @@ You can follow those steps with the following modifications:
 
 </TabPanel>
 
+<TabPanel id="dms" label="AWS DMS">
+
+AWS DMS has the following [documentation](https://docs.aws.amazon.com/dms/latest/userguide/Welcome.html) on configuring Postgres as a source.
+
+DMS is notably useful if you have infrastructure running in AWS and/or you have custom networking. An additional benefit is that DMS is able to replicate schema changes.
+
+You can follow those steps with the following modifications:
+
+1. Use the `postgres` user for replication (or create a new user with replication permissions: `ALTER USER <user> WITH REPLICATION;`)
+2. Set `pluginname` to `test-decoding`
+3. Depending on your databases the pre-assessment may fail. It is not required.
+4. Increase `wal_sender_timeout` and other settings (`max_wal_size`) using the [Supabase CLI](/docs/guides/platform/custom-postgres-config)
+
+</TabPanel>
+
 </Tabs>