diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index acdbfcc..cf9ef2b 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -27,6 +27,11 @@ branchProtectionRules:
     requiredStatusCheckContexts:
       - "cla/google"
       - "lint"
+      - "integration-test-pr-py38 (prow-build-graybox)"
+      - "integration-test-pr-py39 (prow-build-graybox)"
+      - "integration-test-pr-py310 (prow-build-graybox)"
+      - "integration-test-pr-py311 (prow-build-graybox)"
+      - "integration-test-pr-py312 (prow-build-graybox)"
       - "conventionalcommits.org"
       - "header-check"
     # - Add required status checks like presubmit tests
diff --git a/DEVELOPER.md b/DEVELOPER.md
new file mode 100644
index 0000000..f4b2698
--- /dev/null
+++ b/DEVELOPER.md
@@ -0,0 +1,82 @@
+# DEVELOPER.md
+
+## Versioning
+
+This library follows [Semantic Versioning](http://semver.org/).
+
+## Processes
+
+### Conventional Commit messages
+
+This repository uses tool [Release Please](https://github.com/googleapis/release-please) to create GitHub and PyPi releases. It does so by parsing your
+git history, looking for [Conventional Commit messages](https://www.conventionalcommits.org/),
+and creating release PRs.
+
+Learn more by reading [How should I write my commits?](https://github.com/googleapis/release-please?tab=readme-ov-file#how-should-i-write-my-commits)
+
+## Testing
+
+### Run tests locally
+
+1. Set env vars: `DB_HOST`, `DB_PORT`, `DB_NAME`, `DB_USER`, `DB_PASSWORD`
+
+1. Run pytest to automatically run all tests:
+
+    ```bash
+    pytest
+    ```
+
+### CI Platform Setup
+
+Cloud Build is used to run tests against Google Cloud resources in test project: prow-build-graybox.
+Each test has a corresponding Cloud Build trigger, see [all triggers][triggers].
+These tests are registered as required tests in `.github/sync-repo-settings.yaml`.
+
+#### Trigger Setup
+
+Cloud Build triggers (for Python versions 3.8 to 3.11) were created with the following specs:
+
+```YAML
+name: integration-test-pr-py38
+description: Run integration tests on PR for Python 3.8
+filename: integration.cloudbuild.yaml
+github:
+  name: langchain-google-firestore-python
+  owner: googleapis
+  pullRequest:
+    branch: .*
+    commentControl: COMMENTS_ENABLED_FOR_EXTERNAL_CONTRIBUTORS_ONLY
+ignoredFiles:
+  - docs/**
+  - .kokoro/**
+  - .github/**
+  - "*.md"
+substitutions:
+  _VERSION: "3.8"
+  _DB_HOST: <>
+  _DB_PORT: <>
+  _DB_NAME: <>
+  _DB_USER: <>
+```
+
+Use `gcloud builds triggers import --source=trigger.yaml` create triggers via the command line
+
+#### Project Setup
+
+1. Create an GKE Cluster with El Carro database
+1. Setup Cloud Build triggers (above)
+
+#### Run tests with Cloud Build
+
+* Run integration test:
+
+    ```bash
+    gcloud builds submit --config integration.cloudbuild.yaml --substitutions=,_DB_HOST=$DB_HOST,_DB_PORT=$DB_PORT,_DB_NAME=$DB_NAME,_DB_USER=$DB_USER,_DB_PASSWORD=$DB_PASSWORD
+    ```
+
+#### Trigger
+
+To run Cloud Build tests on GitHub from external contributors, ie RenovateBot, comment: `/gcbrun`.
+
+
+[triggers]: https://console.cloud.google.com/cloud-build/triggers?e=13802955&project=prow-build-graybox
diff --git a/integration.cloudbuild.yaml b/integration.cloudbuild.yaml
index aca5bf0..caff360 100644
--- a/integration.cloudbuild.yaml
+++ b/integration.cloudbuild.yaml
@@ -14,17 +14,17 @@
 
 steps:
   - id: Install dependencies
-    name: python:3.11
+    name: python:${_VERSION}
     entrypoint: pip
     args: ["install", "--user", "-r", "requirements.txt"]
 
   - id: Install module (and test requirements)
-    name: python:3.11
+    name: python:${_VERSION}
     entrypoint: pip
     args: ["install", ".[test]", "--user"]
 
   - id: Run integration tests
-    name: python:3.11
+    name: python:${_VERSION}
     entrypoint: python
     args: ["-m", "pytest"]
     env:
@@ -33,6 +33,11 @@ steps:
       - "DB_NAME=$_DB_NAME"
       - "DB_USER=$_DB_USER"
       - "DB_PASSWORD=$_DB_PASSWORD"
+
+substitutions:
+  _VERSION: "3.8"
+
 options:
   pool:
     name: "projects/prow-build-graybox/locations/us-central1/workerPools/langchain-el-carro-wp"
+  dynamicSubstitutions: true
diff --git a/tests/test_chat_message_history.py b/tests/test_chat_message_history.py
index cbe9613..5c39ac6 100644
--- a/tests/test_chat_message_history.py
+++ b/tests/test_chat_message_history.py
@@ -53,12 +53,18 @@ def temporary_table(memory_engine: ElCarroEngine) -> Generator:
     """
     random_suffix = "".join(random.choices(string.ascii_lowercase, k=6))
     table_name = f"message_store_{random_suffix}"
-    memory_engine.drop_chat_history_table(table_name)
+    try:
+        memory_engine.drop_chat_history_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        pass
 
     yield table_name
 
     # Cleanup
-    memory_engine.drop_chat_history_table(table_name)
+    try:
+        memory_engine.drop_chat_history_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        print(e)
 
 
 def test_chat_message_history(
diff --git a/tests/test_loader.py b/tests/test_loader.py
index 1be44d5..70e474b 100644
--- a/tests/test_loader.py
+++ b/tests/test_loader.py
@@ -49,7 +49,10 @@ def elcarro_engine() -> Generator:
 def sample_table_1(elcarro_engine: ElCarroEngine) -> Generator:
     random_suffix = "".join(random.choices(string.ascii_lowercase, k=6))
     table_name = f"doc_{random_suffix}"
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        pass
 
     create_table_query = f"""CREATE TABLE {table_name} (
             fruit_id NUMBER GENERATED BY DEFAULT AS IDENTITY (START WITH 1),
@@ -65,7 +68,10 @@ def sample_table_1(elcarro_engine: ElCarroEngine) -> Generator:
 
     yield table_name
     # Teardown
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        print(e)
 
 
 # Simulate existing customer data table
@@ -76,7 +82,10 @@ def sample_table_1(elcarro_engine: ElCarroEngine) -> Generator:
 def sample_table_2_clob(elcarro_engine: ElCarroEngine) -> Generator:
     random_suffix = "".join(random.choices(string.ascii_lowercase, k=6))
     table_name = f"doc_{random_suffix}"
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        pass
 
     create_table_query = f"""CREATE TABLE {table_name} (
             fruit_id NUMBER GENERATED BY DEFAULT AS IDENTITY (START WITH 1),
@@ -92,14 +101,20 @@ def sample_table_2_clob(elcarro_engine: ElCarroEngine) -> Generator:
 
     yield table_name
     # Teardown
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        print(e)
 
 
 @pytest.fixture(name="sample_table_2_varchar")
 def sample_table_2_varchar(elcarro_engine: ElCarroEngine) -> Generator:
     random_suffix = "".join(random.choices(string.ascii_lowercase, k=6))
     table_name = f"doc_{random_suffix}"
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        pass
 
     create_table_query = f"""CREATE TABLE {table_name} (
             fruit_id NUMBER GENERATED BY DEFAULT AS IDENTITY (START WITH 1),
@@ -115,7 +130,10 @@ def sample_table_2_varchar(elcarro_engine: ElCarroEngine) -> Generator:
 
     yield table_name
     # Teardown
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        print(e)
 
 
 # Generate random name but don't create a table
@@ -123,11 +141,17 @@ def sample_table_2_varchar(elcarro_engine: ElCarroEngine) -> Generator:
 def custom_table(elcarro_engine: ElCarroEngine) -> Generator:
     random_suffix = "".join(random.choices(string.ascii_lowercase, k=6))
     table_name = f"doc_{random_suffix}"
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        pass
 
     yield table_name
     # Teardown
-    elcarro_engine.drop_document_table(table_name)
+    try:
+        elcarro_engine.drop_document_table(table_name)
+    except sqlalchemy.exc.NoSuchTableError as e:
+        print(e)
 
 
 def test_load_from_sample_table_1(elcarro_engine: ElCarroEngine, sample_table_1: str):