diff --git a/enqueue/amqp-bunny/0.7/manifest.json b/enqueue/amqp-bunny/0.7/manifest.json
new file mode 100644
index 00000000..1ea61176
--- /dev/null
+++ b/enqueue/amqp-bunny/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "amqp+bunny://"
+    }
+}
diff --git a/enqueue/amqp-bunny/0.8/manifest.json b/enqueue/amqp-bunny/0.8/manifest.json
new file mode 100644
index 00000000..45927069
--- /dev/null
+++ b/enqueue/amqp-bunny/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "amqp+bunny:"
+    }
+}
diff --git a/enqueue/amqp-ext/0.7/manifest.json b/enqueue/amqp-ext/0.7/manifest.json
new file mode 100644
index 00000000..b5b7522b
--- /dev/null
+++ b/enqueue/amqp-ext/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "amqp+ext://"
+    }
+}
diff --git a/enqueue/amqp-ext/0.8/manifest.json b/enqueue/amqp-ext/0.8/manifest.json
new file mode 100644
index 00000000..5af8c0e3
--- /dev/null
+++ b/enqueue/amqp-ext/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "amqp+ext:"
+    }
+}
diff --git a/enqueue/amqp-lib/0.7/manifest.json b/enqueue/amqp-lib/0.7/manifest.json
new file mode 100644
index 00000000..a8e86e0d
--- /dev/null
+++ b/enqueue/amqp-lib/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "amqp+lib://"
+    }
+}
diff --git a/enqueue/amqp-lib/0.8/manifest.json b/enqueue/amqp-lib/0.8/manifest.json
new file mode 100644
index 00000000..216cab8f
--- /dev/null
+++ b/enqueue/amqp-lib/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "amqp+lib:"
+    }
+}
diff --git a/enqueue/dbal/0.8/manifest.json b/enqueue/dbal/0.8/manifest.json
new file mode 100644
index 00000000..26e98aef
--- /dev/null
+++ b/enqueue/dbal/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "mysql:"
+    }
+}
diff --git a/enqueue/gearman/0.7/manifest.json b/enqueue/gearman/0.7/manifest.json
new file mode 100644
index 00000000..2c1cc833
--- /dev/null
+++ b/enqueue/gearman/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "gearman://"
+    }
+}
diff --git a/enqueue/gearman/0.8/manifest.json b/enqueue/gearman/0.8/manifest.json
new file mode 100644
index 00000000..47027276
--- /dev/null
+++ b/enqueue/gearman/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "gearman:"
+    }
+}
diff --git a/enqueue/gps/0.7/manifest.json b/enqueue/gps/0.7/manifest.json
new file mode 100644
index 00000000..30929440
--- /dev/null
+++ b/enqueue/gps/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "gps:"
+    }
+}
diff --git a/enqueue/pheanstalk/0.8/manifest.json b/enqueue/pheanstalk/0.8/manifest.json
new file mode 100644
index 00000000..82e1a118
--- /dev/null
+++ b/enqueue/pheanstalk/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "beanstalk:"
+    }
+}
diff --git a/enqueue/rdkafka/0.7/manifest.json b/enqueue/rdkafka/0.7/manifest.json
new file mode 100644
index 00000000..5e8695c4
--- /dev/null
+++ b/enqueue/rdkafka/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "rdkafka://"
+    }
+}
diff --git a/enqueue/rdkafka/0.8/manifest.json b/enqueue/rdkafka/0.8/manifest.json
new file mode 100644
index 00000000..f749f3eb
--- /dev/null
+++ b/enqueue/rdkafka/0.8/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "kafka:"
+    }
+}
diff --git a/enqueue/redis/0.7/manifest.json b/enqueue/redis/0.7/manifest.json
new file mode 100644
index 00000000..b35fe233
--- /dev/null
+++ b/enqueue/redis/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "redis:"
+    }
+}
diff --git a/enqueue/sqs/0.7/manifest.json b/enqueue/sqs/0.7/manifest.json
new file mode 100644
index 00000000..11d800f4
--- /dev/null
+++ b/enqueue/sqs/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "sqs:"
+    }
+}
diff --git a/enqueue/stomp/0.7/manifest.json b/enqueue/stomp/0.7/manifest.json
new file mode 100644
index 00000000..b764887b
--- /dev/null
+++ b/enqueue/stomp/0.7/manifest.json
@@ -0,0 +1,5 @@
+{
+    "env": {
+        "ENQUEUE_DSN": "stomp:"
+    }
+}