diff --git a/tests/production-quality/TRACKER.md b/tests/production-quality/TRACKER.md
index 59dc2854..50652799 100644
--- a/tests/production-quality/TRACKER.md
+++ b/tests/production-quality/TRACKER.md
@@ -85,7 +85,7 @@ Apps meant to open in a new/external browser don't launch from the companion app
 mempool can't reach the Bitcoin backend on some nodes. Investigate on .116. Check mempool→electrs→bitcoind wiring + deps.
 
 ### B13 — Fedimint UI not applying CSS — TODO
-Actual Fedimint UI (not pre-sync) renders unstyled. Likely asset path / proxy base-href (assets rooted at `/` vs `/app/fedimint/`).
+Actual Fedimint UI (not pre-sync) renders unstyled. Likely asset path / proxy base-href (assets rooted at `/` vs `/app/fedimint/`). PROGRESS: nginx /app/fedimint/ proxies to :8175 with sub_filter for nostr-provider but NO base-href/asset rewrite. Fedimint UI head has no static CSS link in first 1.2KB (likely JS-module-loaded assets rooted at /). NEXT: dump full fedimint HTML + check if assets request /assets/* (which hit the SPA, not :8175). Fix = inject <base href="/app/fedimint/"> via sub_filter OR rebuild app with correct base. Needs deeper per-app look (fresh context ok).
 
 ### B15 — Bitcoin UI sync progress lags — TODO
 Bitcoin UI doesn't update its sync progress fast enough even though the console clearly already has the block-height data. Likely a polling-interval / reactive-update gap between the status source and the UI.