diff --git a/backend/pnpm-workspace.yaml b/backend/pnpm-workspace.yaml
new file mode 100644
index 0000000..4332721
--- /dev/null
+++ b/backend/pnpm-workspace.yaml
@@ -0,0 +1,2 @@
+packages:
+  - 'diachron'
diff --git a/file-list b/file-list
index 0121335..4c8bb54 100644
--- a/file-list
+++ b/file-list
@@ -2,6 +2,7 @@
 
 backend/diachron
 backend/package.json
+backend/pnpm-workspace.yaml
 # express/framework
 cmd
 develop