diff --git a/.sisyphus/scripts/run-pw.sh b/.sisyphus/scripts/run-pw.sh
index bdacfc5..95eefa1 100755
--- a/.sisyphus/scripts/run-pw.sh
+++ b/.sisyphus/scripts/run-pw.sh
@@ -12,9 +12,14 @@ OUTFILE="${1:?need output file path}"
 shift
 
 # Spawn detached; touch DONE marker when complete (success or failure)
+# NOTE: do NOT set CI=true — that flips Playwright's reuseExistingServer to
+# false and makes it try to spawn its own webServer on :5173, which collides
+# with the docker compose dev stack (paratype-web-dev). Leaving CI unset
+# means reuseExistingServer=true → Playwright connects to the running dev
+# server in docker.
 nohup bash -c "
   cd /home/joey/Projects/rules
-  export CI=true GIT_TERMINAL_PROMPT=0 GIT_PAGER=cat PAGER=cat
+  export GIT_TERMINAL_PROMPT=0 GIT_PAGER=cat PAGER=cat
   bunx playwright test $* > '$OUTFILE' 2>&1
   echo \"EXIT_CODE=\$?\" >> '$OUTFILE'
   touch '$OUTFILE.done'