diff --git a/bundles/left4me/files/etc/left4me/host.env.mako b/bundles/left4me/files/etc/left4me/host.env.mako
new file mode 100644
index 0000000..693dd5c
--- /dev/null
+++ b/bundles/left4me/files/etc/left4me/host.env.mako
@@ -0,0 +1,3 @@
+# Managed by ckn-bw bundles/left4me. Local edits will be reverted.
+# Deployment units use fixed /var/lib/left4me paths; regenerate units if this changes.
+LEFT4ME_ROOT=/var/lib/left4me
diff --git a/bundles/left4me/files/etc/left4me/web.env.mako b/bundles/left4me/files/etc/left4me/web.env.mako
new file mode 100644
index 0000000..b54e746
--- /dev/null
+++ b/bundles/left4me/files/etc/left4me/web.env.mako
@@ -0,0 +1,5 @@
+# Managed by ckn-bw bundles/left4me. Local edits will be reverted.
+DATABASE_URL=sqlite:////var/lib/left4me/left4me.db
+SECRET_KEY=${node.metadata.get('left4me/secret_key')}
+JOB_WORKER_THREADS=${node.metadata.get('left4me/job_worker_threads')}
+SESSION_COOKIE_SECURE=true