The port needs to be different

apps/photos/.env.development

@@ -45,12 +45,14 @@
 # The URL for the shared albums deployment
 #
 # The shared albums are served from the photos app code, and "albums.ente.io" is
-# a CNAME alias to the main photo app itself. Depending on the query params, the
-# root page redirects to "/shared-album".
-#
-# The port here will be :3002 if we run it using `yarn dev:albums`, and :3000 if
-# we run it using `yarn dev:photos` (the code running the same is both cases,
-# only the port it is exposed on is different).
+# a CNAME alias to the main photo app itself. When the main index page loads, it
+# checks to see if the host is "albums.ente.io", and if so, redirects to
+# /shared-albums.
+#
+# This environment variable allows us to check for a host other than
+# "albums.ente.io". By setting this to localhost:3002 and running the photos app
+# on port 3002 (using `yarn dev:albums`), we can connect to it and emulate the
+# production behaviour.
 #
 # Enhancement: Consider splitting this into a separate app/ in this repository.
 # That can also reduce bundle sizes and make it load faster.

apps/photos/.env.localhost

@@ -7,11 +7,15 @@
 #
 # Equivalent CLI command using environment variables would be
 #
-#     NEXT_PUBLIC_ENTE_ENDPOINT=http://localhost:8080 NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT=http://localhost:3000 NEXT_PUBLIC_ENTE_DIRECT_UPLOAD=true yarn dev:photos
+#     NEXT_PUBLIC_ENTE_ENDPOINT=http://localhost:8080 NEXT_PUBLIC_ENTE_DIRECT_UPLOAD=true yarn dev:photos
 #
 
 NEXT_PUBLIC_ENTE_ENDPOINT = http://localhost:8080
-NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT = http://localhost:3000
-# Uncomment this if running using yarn dev:albums
-# NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT = http://localhost:3002
 NEXT_PUBLIC_ENTE_DIRECT_UPLOAD = true
+
+# If you wish to preview how the shared albums work, you can use `yarn
+# dev:albums`. The equivalent CLI command using env vars would be
+#
+#     NEXT_PUBLIC_ENTE_ENDPOINT=http://localhost:8080 NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT=http://localhost:3002 NEXT_PUBLIC_ENTE_DIRECT_UPLOAD=true yarn dev:albums
+
+NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT = http://localhost:3002