From 4371e46240738354da3e58c2ebf7bdf49f044706 Mon Sep 17 00:00:00 2001
From: Paul Payne <paul@payne.io>
Date: Tue, 30 Jun 2026 23:16:19 -0700
Subject: [PATCH] Add ${public_url} to the env placeholder hint in the UI

---
 app/src/components/detail/fields.tsx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/src/components/detail/fields.tsx b/app/src/components/detail/fields.tsx
index 13ab54d..a534cbd 100644
--- a/app/src/components/detail/fields.tsx
+++ b/app/src/components/detail/fields.tsx
@@ -101,7 +101,8 @@ export function useEnvSecrets(initial: Record<string, string>) {
           <p className="text-xs text-[var(--muted)]">
             Use <code className="font-mono">${"{port}"}</code>,{" "}
             <code className="font-mono">${"{data_dir}"}</code>,{" "}
-            <code className="font-mono">${"{name}"}</code> for castle's computed values,
+            <code className="font-mono">${"{name}"}</code>,{" "}
+            <code className="font-mono">${"{public_url}"}</code> for castle's computed values,
             and <code className="font-mono">${"{secret:NAME}"}</code> for secrets.
           </p>
           {Object.entries(env).map(([key, val]) => (