diff --git a/docs/docs/self-hosting/guides/custom-server/index.md b/docs/docs/self-hosting/guides/custom-server/index.md
index 89518a0b7b..86060ba909 100644
--- a/docs/docs/self-hosting/guides/custom-server/index.md
+++ b/docs/docs/self-hosting/guides/custom-server/index.md
@@ -8,22 +8,7 @@ description: Using a custom self-hosted server with Ente client apps and CLI
 You can modify various Ente client apps and CLI to connect to a self hosted
 custom server endpoint.
 
-## Find the hostname of your server
-
-First, run
-```sh
-hostname
-```
-
-The result will look something like this
-```sh
-my-computer.local
-```
-
-You will need to replace the server endpoint with an address that uses your server's hostname and the port number. Here's an example:
-```
-http://my-computer.local:8080
-```
+[[toc]]
 
 ## Mobile
 
@@ -94,3 +79,37 @@ endpoint:
 
 (Another
 [example](https://github.com/ente-io/ente/blob/main/cli/config.yaml.example))
+
+## Find the hostname of your server
+
+If you want to access your museum within your own network, you can use the
+`hostname` command to find a addressable local network hostname or IP for your
+computer, and then use it by suffixing it with the port number.
+
+First, run
+
+```sh
+hostname
+```
+
+The result will look something like this
+
+```sh
+my-computer.local
+```
+
+You will need to replace the server endpoint with an address that uses your
+server's hostname and the port number. Here's an example:
+
+```
+http://my-computer.local:8080
+```
+
+Note that this will only work within your network. To access it from outside the
+network, you need to use the public IP or hostname.
+
+> [!TIP]
+>
+> If you're having trouble uploading from your mobile app, it is likely that
+> museum is not able to connect to your S3 storage. See the [Configuring
+> S3](/self-hosting/guides/configuring-s3) guide for more details.