diff --git a/docs/groovy/docker-compose.yml b/docs/groovy/docker-compose.yml
new file mode 100644
index 0000000..c1631f8
--- /dev/null
+++ b/docs/groovy/docker-compose.yml
@@ -0,0 +1,14 @@
+# Provided as a convience to run the example .groovy files in this directory
+version: '3.9'
+
+
+services:
+  runner:
+    image: groovy:3.0.9-jdk11
+    working_dir: /appsrc
+    command: bash -c "groovy graph-method-1.groovy"
+    stdin_open: true 
+    tty: true
+    volumes:
+      - "./:/appsrc"
+
diff --git a/docs/groovy/graph-method-1.groovy b/docs/groovy/graph-method-1.groovy
index 05357a6..8a7d8a9 100644
--- a/docs/groovy/graph-method-1.groovy
+++ b/docs/groovy/graph-method-1.groovy
@@ -2,7 +2,7 @@
 // DEPENDENCIES
 ///////////////////////////////////////////////////////////////////////////////
 
-@Grab('io.github.carnival-data:carnival-core:3.0.2-SNAPSHOT')
+@Grab('io.github.carnival-data:carnival-core:3.0.1')
 @Grab('org.apache.tinkerpop:gremlin-core:3.4.10')
 
 
@@ -106,14 +106,14 @@ class Expanders implements GraphMethods {
 
                 String val = PX.NAME.valueOf(recV)
                 List<String> words = val.trim().split(/\s+/)
-                if (words.size == 0) return
+                if (words.size() == 0) return
 
                 Vertex nameV
 
-                if (words.size == 1) {
+                if (words.size() == 1) {
                     nameV = VX.NAME.instance().withProperty(PX.FIRST, words[0]).ensure(graph, g)
                 }
-                if (words.size == 2) {
+                if (words.size() == 2) {
                     nameV = VX.NAME.instance().withProperties(
                         PX.FIRST, words[0],
                         PX.LAST, words[1]
diff --git a/docs/groovy/graph-model-1.groovy b/docs/groovy/graph-model-1.groovy
index ca1dbed..93bbc03 100644
--- a/docs/groovy/graph-model-1.groovy
+++ b/docs/groovy/graph-model-1.groovy
@@ -2,7 +2,8 @@
 // DEPENDENCIES
 ///////////////////////////////////////////////////////////////////////////////
 
-@Grab('io.github.carnival-data:carnival-core:3.0.2-SNAPSHOT')
+//@Grab('io.github.carnival-data:carnival-core:3.0.2-SNAPSHOT')
+@Grab('io.github.carnival-data:carnival-core:3.0.1')
 @Grab('org.apache.tinkerpop:gremlin-core:3.4.10')
 
 
diff --git a/docs/groovy/graph-model-2.groovy b/docs/groovy/graph-model-2.groovy
index a8e6fab..ccf7926 100644
--- a/docs/groovy/graph-model-2.groovy
+++ b/docs/groovy/graph-model-2.groovy
@@ -2,7 +2,7 @@
 // DEPENDENCIES
 ///////////////////////////////////////////////////////////////////////////////
 
-@Grab('io.github.carnival-data:carnival-core:3.0.2-SNAPSHOT')
+@Grab('io.github.carnival-data:carnival-core:3.0.1')
 @Grab('org.apache.tinkerpop:gremlin-core:3.4.10')
 
 
diff --git a/docs/groovy/graph-model-3.groovy b/docs/groovy/graph-model-3.groovy
index 677a6df..9fede20 100644
--- a/docs/groovy/graph-model-3.groovy
+++ b/docs/groovy/graph-model-3.groovy
@@ -2,7 +2,7 @@
 // DEPENDENCIES
 ///////////////////////////////////////////////////////////////////////////////
 
-@Grab('io.github.carnival-data:carnival-core:3.0.2-SNAPSHOT')
+@Grab('io.github.carnival-data:carnival-core:3.0.1')
 @Grab('org.apache.tinkerpop:gremlin-core:3.4.10')
 
 
diff --git a/docs/groovy/readme.md b/docs/groovy/readme.md
new file mode 100644
index 0000000..64fddc5
--- /dev/null
+++ b/docs/groovy/readme.md
@@ -0,0 +1,9 @@
+This directory contains example scripts.
+
+The docker compose file can be use to start an interactive shell with groovy available on the command line:
+`docker-compose run runner bash`
+
+From the shell, the scripts can be run as follows:
+`groovy graph-model-1.groovy`
+
+For more see the [user documentation](https://carnival-data.github.io/carnival/#script-development).
\ No newline at end of file
diff --git a/docs/groovy/tutorial-1.groovy b/docs/groovy/tutorial-1.groovy
index 4b83e90..3b3cc1d 100644
--- a/docs/groovy/tutorial-1.groovy
+++ b/docs/groovy/tutorial-1.groovy
@@ -6,8 +6,8 @@
 // public snapshot repository
 //@GrabResolver(name='io.github.carnival-data', root='https://s01.oss.sonatype.org/content/repositories/snapshots/')
 
-@Grab('io.github.carnival-data:carnival-core:3.0.2-SNAPSHOT')
-@Grab('io.github.carnival-data:carnival-vine:3.0.2-SNAPSHOT')
+@Grab('io.github.carnival-data:carnival-core:3.0.1')
+@Grab('io.github.carnival-data:carnival-vine:3.0.1')
 @Grab('org.apache.tinkerpop:gremlin-core:3.4.10')
 @Grab('com.fasterxml.jackson.core:jackson-databind:2.14.1')
 
diff --git a/docs/index.md b/docs/index.md
index e241f95..8f41cbc 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -285,6 +285,9 @@ The example scripts use [Groovy Grape](http://docs.groovy-lang.org/latest/html/d
 groovy -Dgroovy.grape.report.downloads=true graph-model-1.groovy
 ```
 
+> **Note**
+> To assist with running the example scripts, as an alternative to installing Groovy `docs/groovy` contains a docker-compose file to start an interactive shell with groovy available on the command line. To start the shell, from the example directory run `docker-compose run runner bash`. Scripts can be run with commands such as `groovy graph-model-1.groovy`.
+
 
 ### <a name="app-development"></a>Groovy Applications
 The Carnival library can be included in Gradle Groovy applications and libraries.