diff --git a/java/google/registry/config/RegistryConfig.java b/java/google/registry/config/RegistryConfig.java
index 20899a533..b270df5be 100644
--- a/java/google/registry/config/RegistryConfig.java
+++ b/java/google/registry/config/RegistryConfig.java
@@ -1254,6 +1254,19 @@ public final class RegistryConfig {
     }
   }
 
+  /**
+   * Memoizes loading of the {@link RegistryConfigSettings} POJO.
+   *
+   * <p>Memoizing without cache expiration is used because the app must be re-deployed in order to
+   * change the contents of the YAML config files.
+   */
+  private static final Supplier<RegistryConfigSettings> CONFIG_SETTINGS =
+      memoize(new Supplier<RegistryConfigSettings>() {
+        @Override
+        public RegistryConfigSettings get() {
+          return getConfigSettings();
+        }});
+
   /** Returns the roid suffix to be used for the roids of all contacts and hosts. */
   public static String getContactAndHostRoidSuffix() {
     return CONFIG_SETTINGS.get().registryPolicy.contactAndHostRoidSuffix;
diff --git a/java/google/registry/env/alpha/common/WEB-INF/nomulus-config.yaml b/java/google/registry/env/alpha/common/WEB-INF/nomulus-config.yaml
index 85b1f528f..4b9ddfafd 100644
--- a/java/google/registry/env/alpha/common/WEB-INF/nomulus-config.yaml
+++ b/java/google/registry/env/alpha/common/WEB-INF/nomulus-config.yaml
@@ -1,10 +1 @@
-
-appEngine:
-  projectId: domain-registry-alpha
-
-registryPolicy:
-  contactAndHostRoidSuffix: GOOGLE
-  productName: Google Registry Alpha
-
-registrarConsole:
-  logoFilename: google_registry.png
+# Add environment-specific configuration here
diff --git a/java/google/registry/env/crash/common/WEB-INF/nomulus-config.yaml b/java/google/registry/env/crash/common/WEB-INF/nomulus-config.yaml
index 4e5a23b6d..4b9ddfafd 100644
--- a/java/google/registry/env/crash/common/WEB-INF/nomulus-config.yaml
+++ b/java/google/registry/env/crash/common/WEB-INF/nomulus-config.yaml
@@ -1,10 +1 @@
-
-appEngine:
-  projectId: domain-registry-crash
-
-registryPolicy:
-  contactAndHostRoidSuffix: GOOGLE
-  productName: Google Registry Crash
-
-registrarConsole:
-  logoFilename: google_registry.png
+# Add environment-specific configuration here
diff --git a/java/google/registry/env/local/common/WEB-INF/nomulus-config.yaml b/java/google/registry/env/local/common/WEB-INF/nomulus-config.yaml
index 0626bf521..4b9ddfafd 100644
--- a/java/google/registry/env/local/common/WEB-INF/nomulus-config.yaml
+++ b/java/google/registry/env/local/common/WEB-INF/nomulus-config.yaml
@@ -1,3 +1 @@
-
-appEngine:
-  projectId: domain-registry
+# Add environment-specific configuration here
diff --git a/java/google/registry/env/production/common/WEB-INF/nomulus-config.yaml b/java/google/registry/env/production/common/WEB-INF/nomulus-config.yaml
index ae5d0e918..4b9ddfafd 100644
--- a/java/google/registry/env/production/common/WEB-INF/nomulus-config.yaml
+++ b/java/google/registry/env/production/common/WEB-INF/nomulus-config.yaml
@@ -1,10 +1 @@
-
-appEngine:
-  projectId: domain-registry
-
-registryPolicy:
-  contactAndHostRoidSuffix: GOOGLE
-  productName: Google Registry
-
-registrarConsole:
-  logoFilename: google_registry.png
+# Add environment-specific configuration here
diff --git a/java/google/registry/env/sandbox/common/WEB-INF/nomulus-config.yaml b/java/google/registry/env/sandbox/common/WEB-INF/nomulus-config.yaml
index b68bdaab6..4b9ddfafd 100644
--- a/java/google/registry/env/sandbox/common/WEB-INF/nomulus-config.yaml
+++ b/java/google/registry/env/sandbox/common/WEB-INF/nomulus-config.yaml
@@ -1,10 +1 @@
-
-appEngine:
-  projectId: domain-registry-sandbox
-
-registryPolicy:
-  contactAndHostRoidSuffix: GOOGLE
-  productName: Google Registry Sandbox
-
-registrarConsole:
-  logoFilename: google_registry.png
+# Add environment-specific configuration here