1 files changed, 6 insertions, 6 deletions

diff --git a/src/pages/og/[slug].png.ts b/src/pages/og/[slug].png.ts
index 1047647..a743efe 100644
--- a/src/pages/og/[slug].png.ts
+++ b/src/pages/og/[slug].png.ts
@@ -142,10 +142,10 @@ export async function GET({ params }: { params: { slug: string } }) {
     title = `${reiwa}${month}定例会`;
   }
 
-  // Check cache: if title hash matches, return cached PNG
-  const distDir = path.join(process.cwd(), "dist", "og");
-  const cacheFile = path.join(distDir, `${slug}.png`);
-  const cacheJsonPath = path.join(distDir, ".og-cache.json");
+  // Check cache: if title hash matches, return cached PNG from node_modules/.og-cache
+  const cacheDir = path.join(process.cwd(), "node_modules", ".og-cache");
+  const cacheFile = path.join(cacheDir, `${slug}.png`);
+  const cacheJsonPath = path.join(cacheDir, ".og-cache.json");
 
   let cache: Record<string, string> = {};
   if (existsSync(cacheJsonPath)) {
@@ -293,8 +293,8 @@ export async function GET({ params }: { params: { slug: string } }) {
   const resvg = new Resvg(svg, { fitTo: { mode: "width", value: 1200 } });
   const pngBuffer = resvg.render().asPng();
 
-  // Save to cache
-  if (!existsSync(distDir)) mkdirSync(distDir, { recursive: true });
+  // Save to cache in node_modules/.og-cache (persists across builds)
+  if (!existsSync(cacheDir)) mkdirSync(cacheDir, { recursive: true });
   writeFileSync(cacheFile, pngBuffer);
   cache[slug] = titleHash;
   writeFileSync(cacheJsonPath, JSON.stringify(cache, null, 2));