diff --git a/dbt_profiles.snowflake.yml b/dbt_profiles.snowflake.yml
index 0415ea9..26efcc2 100644
--- a/dbt_profiles.snowflake.yml
+++ b/dbt_profiles.snowflake.yml
@@ -8,13 +8,13 @@
 dbt_demo:
   outputs:
     dev:
-      account: __SNOWFLAKE_ACCOUNT__
-      database: __SNOWFLAKE_DATABASE__
-      password: __SNOWFLAKE_PASSWORD__
-      role: __SNOWFLAKE_ROLE__
+      account: "{{ env_var('SNOWFLAKE_ACCOUNT') }}"
+      database: "{{ env_var('SNOWFLAKE_DATABASE') }}"
+      password: "{{ env_var('SNOWFLAKE_PASSWORD') }}"
+      role: "{{ env_var('SNOWFLAKE_ROLE') }}"
       schema: PUBLIC
       threads: 10
       type: snowflake
-      user: __SNOWFLAKE_USER__
-      warehouse: __SNOWFLAKE_WAREHOUSE__
+      user: "{{ env_var('SNOWFLAKE_USER') }}"
+      warehouse: "{{ env_var('SNOWFLAKE_WAREHOUSE') }}"
   target: dev
diff --git a/docs/git-branching-model.drawio.svg b/docs/git-branching-model.drawio.svg
index 30754eb..06fd3cf 100644
--- a/docs/git-branching-model.drawio.svg
+++ b/docs/git-branching-model.drawio.svg
@@ -1,6 +1,4 @@
-<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="224px" height="4px" viewBox="-0.5 -0.5 224 4" content="&lt;mxfile&gt;&lt;diagram id=&quot;rTuNVwRgUGgbUi-3YlKA&quot; name=&quot;Page-1&quot;&gt;jZPLboQgFIafxj1qp5dla6fTTZMms+iayKmQIMcgjtqnLxYQGdO0K+HjP7cfzMqqnU6advwNGcisIGzKyuesKPKHPLefhcyOHAriQKMF86IIzuILPAyyQTDoE6FBlEZ0KaxRKahNwqjWOKayT5Rp1Y42sAPnmso9/RDMcEfvDyTyVxAND5Vz4k9aGsQe9JwyHDeoPGZlpRGNW7VTBXIxL/ji4l5+OV0b06DMfwLuXMCFysHP5vsycxgWFHtcPLM7hcrCJ25aaXe5Xe7r+RaAJRb66ifAFoyerWCMxgXf+MazwDRIasQlNZ76+2vWdGuFdxS2k4L4t3YbjL5+aSFFj4OuwUdtjbpKdEP+SGSobsDsEtnFZuyIfu4hbON9O3n8a8rjNw==&lt;/diagram&gt;&lt;/mxfile&gt;">
+<svg host="65bd71144e" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="1px" height="1px" viewBox="-0.5 -0.5 1 1" content="&lt;mxfile&gt;&lt;diagram id=&quot;rTuNVwRgUGgbUi-3YlKA&quot; name=&quot;Page-1&quot;&gt;ddHNEoIgEADgp+GOUlN3s7p48tCZkU2YAdZBGq2nT0fIGOvE8u3C8kNYYcaL452sUIAmORUjYSeS5xk77KZhlucix32A1ikRilao1QsC0qAPJaBPCj2i9qpLsUFrofGJcedwSMvuqNOuHW9hA3XD9VZvSngZb0FXv4JqZeyc0ZAxPBYH6CUXOHwRKwkrHKJfIjMWoOfHi++yrDv/yX4O5sD6HwumYN17miQ/xMo3&lt;/diagram&gt;&lt;/mxfile&gt;">
     <defs/>
-    <g>
-        <path d="M 220 0 L 0 0" fill="none" stroke="rgb(0, 0, 0)" stroke-miterlimit="10" pointer-events="stroke"/>
-    </g>
+    <g/>
 </svg>
\ No newline at end of file
diff --git a/models/example/schema.yml b/models/example/schema.yml
index 1a49561..fddc3f9 100644
--- a/models/example/schema.yml
+++ b/models/example/schema.yml
@@ -1,5 +1,18 @@
 ---
 version: 2
+
+##
+## DAG Sources
+## See dbt docs: https://docs.getdbt.com/docs/build/sources
+##
+sources:
+  - name: jaffle_shop
+    database: raw  
+    schema: jaffle_shop  
+    tables:
+      - name: orders
+      - name: customers
+
 models:
   - name: my_first_dbt_model
     description: A starter dbt model
@@ -13,3 +26,33 @@ models:
       - name: id
         description: The primary key for this table
         tests: [unique, not_null]
+
+##
+## Exposures define downstream uses of the dbt project,
+## See dbt docs: https://docs.getdbt.com/docs/build/exposures
+##
+exposures:
+  - name: weekly_jaffle_metrics
+    label: Weekly Jaffle Metrics
+    type: dashboard
+    
+    # Indicates the level of confidence (stability) in the exposure.
+    # Options:
+    # - high (i.e. for a well-established dashboard, widely used and trusted within your organizatio)
+    # - medium
+    # - low (i.e. for a new or experimental analysis)
+    maturity: high
+
+    url: https://bi.tool/dashboards/1
+
+    description: >
+      Did someone say "exponential growth"?
+  
+    depends_on:
+      - ref('my_first_dbt_model')
+      - source('jaffle_shop', 'orders')
+      # - metric('count_orders')
+
+    owner:
+      name: Jo Lares
+      email: jolares@jaffleshop.com
\ No newline at end of file
diff --git a/package-lock.yml b/package-lock.yml
new file mode 100644
index 0000000..8f0e8f7
--- /dev/null
+++ b/package-lock.yml
@@ -0,0 +1,6 @@
+packages:
+- package: dbt-labs/codegen
+  version: 0.12.1
+- package: dbt-labs/dbt_utils
+  version: 1.1.1
+sha1_hash: acdde602cd2e228b1dac1cf1a7e5f98f12c16b3b
diff --git a/packages.yml b/packages.yml
new file mode 100644
index 0000000..c610ca4
--- /dev/null
+++ b/packages.yml
@@ -0,0 +1,8 @@
+packages:
+  # See https://hub.getdbt.com/dbt-labs/codegen/latest/
+  - package: dbt-labs/codegen
+    version: 0.12.1
+    
+  # See https://github.com/tnightengale/dbt-meta-testing/tree/0.3.6/
+  - package: tnightengale/dbt_meta_testing
+    version: 0.3.6
\ No newline at end of file
diff --git a/setup.sh b/setup.sh
index 6af8218..fba7ca4 100644
--- a/setup.sh
+++ b/setup.sh
@@ -4,12 +4,12 @@
 ##
 
 if [ -z "${DBT_PROJECT_NAME}" ]; then
-  echo "Environment variable DBT_PROJECT_NAME is not set"
+  echo "[Error] Environment variable DBT_PROJECT_NAME is not set"
   exit 1
 fi
 
 if [ -z "${DBT_WAREHOUSE_PROVIDER}" ]; then
-  echo "Environment variable DBT_WAREHOUSE_PROVIDER is not set"
+  echo "[Error] Environment vartarget='dev'iable DBT_WAREHOUSE_PROVIDER is not set"
   exit 1
 fi
 
@@ -72,16 +72,11 @@ fi
 # Confirm that the dbt installation was successful.
 dbt --version
 
-python -m pip install -r requirements.txt
-
-# dbt init $DBT_PROJECT_NAME
-
-##
-## Setup dbt connection profile to data warehouse
-##
+# Install dbt packages specified in package.yml
+dbt deps
 
-# TODO
-# ...
+# Install Python packages
+python -m pip install -r requirements.txt
 
 # Verify dbt connection profile to data warehouse
-dbt debug
\ No newline at end of file
+dbt debug