diff --git a/handbook/engineering/index.md b/handbook/engineering/index.md
index cb4e763259f..218367dcff3 100644
--- a/handbook/engineering/index.md
+++ b/handbook/engineering/index.md
@@ -10,26 +10,30 @@
   - [Go](languages/go.md)
   - [TypeScript](languages/typescript.md)
   - [Terraform](languages/terraform.md)
-- [Testing](testing.md)
-- [Styling UI](./web/styling.md)
-- [Continuous integration](continuous_integration.md)
-- [Product documentation](product_documentation.md)
-- [Continuous releasability](continuous_releasability.md)
-- [Commit message guidelines](commit_messages.md)
-- [Ignoring editor config files in Git](ignoring_editor_config_files.md)
-- [Configuring Zoom to send recordings to Slack automatically](configuring_zoom_recordings_to_slack_automatically.md)
-- [Customer Issues](../ce/customer_issues.md)
-- [Incidents](incidents/index.md)
-- [Releases](releases/index.md)
-  - [Release issue template](releases/release_issue_template.md)
-- [Cloud environments](environments.md)
-- [Deployments](deployments.md)
-- [On-call](incidents/on_call.md)
-- [Prometheus](observability/prometheus.md)
-- [Honeycomb](honeycomb.md)
-- [Adding and debugging ping data](adding_ping_data.md)
-- [Adding buildkite secrets](adding_buildkite_secrets.md)
-- [External contributions](external_contributions.md)
+- Practices & Philosophy
+  - [Customer Issues](../ce/customer_issues.md)
+  - [Incidents](incidents/index.md)
+  - [Testing](testing.md)
+  - [Styling UI](./web/styling.md)
+  - [Continuous integration](continuous_integration.md)
+  - [Product documentation](product_documentation.md)
+  - [Continuous releasability](continuous_releasability.md)
+  - [Commit message guidelines](commit_messages.md)
+  - [Releases](releases/index.md)
+    - [Release issue template](releases/release_issue_template.md)
+  - [External contributions](external_contributions.md)
+- Tooling
+  - [Ignoring editor config files in Git](ignoring_editor_config_files.md)
+  - [Configuring Zoom to send recordings to Slack automatically](configuring_zoom_recordings_to_slack_automatically.md)
+- Infrastructure
+  - [Cloud environments](environments.md)
+  - [Deployments](deployments.md)
+  - [On-call](incidents/on_call.md)
+  - [Prometheus](observability/prometheus.md)
+  - [Honeycomb](honeycomb.md)
+  - [Adding and debugging ping data](adding_ping_data.md)
+  - [Adding buildkite secrets](adding_buildkite_secrets.md)
+
 
 ## Ownership of technical decisions