diff --git a/docker-compose.example.yml b/docker-compose.example.yml
index e5ed7b85..c466ebe0 100644
--- a/docker-compose.example.yml
+++ b/docker-compose.example.yml
@@ -52,6 +52,11 @@ services:
       dockerfile: services/edge-broker/Dockerfile
     container_name: edge-broker
     environment:
+<<<<<<< HEAD
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
+    ports:
+      - "127.0.0.1:4300:4300"
+=======
       EDGE_AUTH_MODE: ${EDGE_AUTH_MODE:-manager}
       EDGE_MANAGER_URL: ${EDGE_MANAGER_URL:-http://caddy}
       EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
@@ -70,6 +75,7 @@ services:
       - "traefik.http.middlewares.edge-broker-strip.stripPrefix.prefixes=/edge-broker"
       - "traefik.http.middlewares.edge-broker-strip-local.stripPrefix.prefixes=/api/edge-broker"
       - "traefik.http.services.edge-broker.loadbalancer.server.port=4300"
+>>>>>>> origin/master
 
   caddy:
     image: caddy:2.7.6-alpine
@@ -113,7 +119,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "true"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -134,7 +140,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
diff --git a/docker-compose.yml b/docker-compose.yml
index 1c91555b..513e9ba2 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -121,6 +121,11 @@ services:
       dockerfile: services/edge-broker/Dockerfile
     container_name: edge-broker
     environment:
+<<<<<<< HEAD
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
+    ports:
+      - "127.0.0.1:4300:4300"
+=======
       EDGE_AUTH_MODE: ${EDGE_AUTH_MODE:-manager}
       EDGE_MANAGER_URL: ${EDGE_MANAGER_URL:-http://caddy}
       EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
@@ -174,6 +179,7 @@ services:
       - "traefik.http.middlewares.edge-broker-strip.stripPrefix.prefixes=/edge-broker"
       - "traefik.http.middlewares.edge-broker-strip-local.stripPrefix.prefixes=/api/edge-broker"
       - "traefik.http.services.edge-broker.loadbalancer.server.port=4300"
+>>>>>>> origin/master
 
   caddy:
     image: caddy:2.7.6-alpine
@@ -307,7 +313,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "true"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -327,7 +333,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -347,7 +353,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -367,7 +373,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -387,7 +393,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -407,7 +413,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/staging:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
@@ -427,7 +433,7 @@ services:
     environment:
       AUTO_COMPOSER_INSTALL: "false"
       EDGE_BROKER_URL: ${EDGE_BROKER_URL:-http://edge-broker:4300}
-      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev}
+      EDGE_BROKER_SHARED_SECRET: ${EDGE_BROKER_SHARED_SECRET:?set EDGE_BROKER_SHARED_SECRET in .env}
     volumes:
       - ./services/nginx/app:/var/www/html
       - ./services/php/php.ini:/usr/local/etc/php/conf.d/zz-custom.ini:ro
diff --git a/services/edge-broker/test/config.test.mjs b/services/edge-broker/test/config.test.mjs
index dfb64706..6adb091d 100644
--- a/services/edge-broker/test/config.test.mjs
+++ b/services/edge-broker/test/config.test.mjs
@@ -36,6 +36,16 @@ test("traefik does not expose a dedicated public edge broker port", () => {
   assert.doesNotMatch(traefikSource, /edge-broker:\s*\n\s*address:\s*":4300"/);
 });
 
+<<<<<<< HEAD
+test("base docker compose binds edge broker port 4300 to localhost only", () => {
+  assert.match(baseComposeSource, /\bedge-broker:\b/);
+  assert.match(baseComposeSource, /edge-broker:\s*\n[\s\S]*?\n\s+ports:\s*\n\s+- "127.0.0.1:4300:4300"/);
+});
+
+test("example docker compose binds edge broker port 4300 to localhost only", () => {
+  assert.match(exampleComposeSource, /\bedge-broker:\b/);
+  assert.match(exampleComposeSource, /edge-broker:\s*\n[\s\S]*?\n\s+ports:\s*\n\s+- "127.0.0.1:4300:4300"/);
+=======
 test("base docker compose routes edge broker traffic through traefik", () => {
   const serviceBlock = readComposeServiceBlock(baseComposeSource, "edge-broker");
   assert.doesNotMatch(serviceBlock, /\n\s+ports:\s*\n[\s\S]*?\n\s+- "4300:4300"/);
@@ -74,12 +84,13 @@ test("standalone production compose routes edge broker traffic through traefik",
   assert.match(serviceBlock, /traefik\.http\.routers\.edge-broker-api-v2\.rule=Host\(`api-v2\.truckwash\.io`\) && PathPrefix\(`\/edge-broker`\)/);
   assert.match(serviceBlock, /traefik\.http\.routers\.edge-broker-local\.rule=Host\(`localhost`\) && PathPrefix\(`\/api\/edge-broker`\)/);
   assert.match(serviceBlock, /traefik\.http\.services\.edge-broker\.loadbalancer\.server\.port=4300/);
+>>>>>>> origin/master
 });
 
 test("php services receive broker websocket environment defaults", () => {
   for (const composeSource of [baseComposeSource, exampleComposeSource]) {
     assert.match(composeSource, /EDGE_BROKER_URL:\s*\$\{EDGE_BROKER_URL:-http:\/\/edge-broker:4300\}/);
-    assert.match(composeSource, /EDGE_BROKER_SHARED_SECRET:\s*\$\{EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev\}/);
+    assert.match(composeSource, /EDGE_BROKER_SHARED_SECRET:\s*\$\{EDGE_BROKER_SHARED_SECRET:\?set EDGE_BROKER_SHARED_SECRET in \.env\}/);
   }
 });
 
@@ -88,6 +99,6 @@ test("base docker compose wires the broker into each php worker", () => {
     const serviceBlock = readComposeServiceBlock(baseComposeSource, serviceName);
     assert.match(serviceBlock, /\n\s+depends_on:\s*\n[\s\S]*?\n\s+- edge-broker/);
     assert.match(serviceBlock, /EDGE_BROKER_URL:\s*\$\{EDGE_BROKER_URL:-http:\/\/edge-broker:4300\}/);
-    assert.match(serviceBlock, /EDGE_BROKER_SHARED_SECRET:\s*\$\{EDGE_BROKER_SHARED_SECRET:-truckwash-edge-dev\}/);
+    assert.match(serviceBlock, /EDGE_BROKER_SHARED_SECRET:\s*\$\{EDGE_BROKER_SHARED_SECRET:\?set EDGE_BROKER_SHARED_SECRET in \.env\}/);
   }
 });