From c64a32abd5e68080921574a735ee2804fb2a9212 Mon Sep 17 00:00:00 2001
From: Sawyer Cutler <sawyer@dirtroad.dev>
Date: Sat, 31 Oct 2026 02:01:48 -0700
Subject: [PATCH] refactor(hub): check the signing key's EEXIST with hasCode

---
 apps/hub/src/signing-key.ts | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/apps/hub/src/signing-key.ts b/apps/hub/src/signing-key.ts
index a9132722..ff2e9913 100644
--- a/apps/hub/src/signing-key.ts
+++ b/apps/hub/src/signing-key.ts
@@ -1,7 +1,7 @@
 import { mkdir, readFile, writeFile, lstat } from "node:fs/promises";
 import { join } from "node:path";
 import { derivePublicKeyBytes, generateKeyPair } from "@intx/crypto";
-import { hexDecode, hexEncode } from "@intx/types";
+import { hasCode, hexDecode, hexEncode } from "@intx/types";
 
 export async function loadHubSigningKey(dataDir: string) {
   await mkdir(dataDir, { recursive: true, mode: 0o700 });
@@ -13,8 +13,7 @@ export async function loadHubSigningKey(dataDir: string) {
       mode: 0o600,
     });
   } catch (error) {
-    if (!(error instanceof Error && "code" in error && error.code === "EEXIST"))
-      throw error;
+    if (!(hasCode(error) && error.code === "EEXIST")) throw error;
   }
   const info = await lstat(file);
   if (!info.isFile() || (info.mode & 0o077) !== 0) {