Index: scripts/klonkt-migrate-data.sh
===================================================================
--- scripts/klonkt-migrate-data.sh	(revision 2dd1dc40db2f7dab2c095eeb309e5aaa02369b4b)
+++ scripts/klonkt-migrate-data.sh	(revision 5462bab0a30abfb9338812cb154a11cebda17b67)
@@ -135,4 +135,17 @@
 run "systemctl enable --now 'klonkt@$SLUG'"
 
+step "Rewriting klonkt-update for the new layout"
+# The installer generated an updater that restarts klonkt.service — which we
+# just retired. Left alone it would keep updating the code while never
+# restarting the real process: half old, half new, and a 500 with no obvious
+# cause. Rewrite it so it restarts every klonkt@<slug> instead.
+if [ -f "$KLONKT_DIR/scripts/klonkt-refresh-updater.sh" ]; then
+  run "KLONKT_DIR='$KLONKT_DIR' KLONKT_USER='$KLONKT_USER' KLONKT_DATA_ROOT='$DATA_ROOT' bash '$KLONKT_DIR/scripts/klonkt-refresh-updater.sh'"
+else
+  say "WARNING: scripts/klonkt-refresh-updater.sh missing in this checkout."
+  say "         Update the code and run it once by hand, or every klonkt-update"
+  say "         from now on will update code WITHOUT restarting the process."
+fi
+
 step "Verifying"
 if [ "$DRY" = 1 ]; then