diff --git a/docs/huggingface.md b/docs/huggingface.md
index 7d3419d..f96a1b5 100644
--- a/docs/huggingface.md
+++ b/docs/huggingface.md
@@ -24,11 +24,11 @@ RUN apt-get update && \
     apt-get install -y git
 RUN git clone https://github.com/nai-degen/oai-reverse-proxy.git /app
 WORKDIR /app
-ENV NODE_ENV=production
 RUN npm install
-COPY . .
+COPY Dockerfile .env* ./
 RUN npm run build
 EXPOSE 7860
+ENV NODE_ENV=production
 CMD [ "npm", "start" ]
 ```
 - Click "Commit new file to `main`" to save the Dockerfile.
diff --git a/src/info-page.ts b/src/info-page.ts
index 7e349bf..cf2fc4b 100644
--- a/src/info-page.ts
+++ b/src/info-page.ts
@@ -26,11 +26,17 @@ function getInfoPageHtml(host: string) {
       status: `Still checking ${uncheckedKeys.length} keys...`,
     };
   } else if (config.checkKeys) {
+    const hasGpt4 = keys.some((k) => k.isGpt4);
     keyInfo = {
       ...keyInfo,
       trial: keys.filter((k) => k.isTrial).length,
       gpt4: keys.filter((k) => k.isGpt4).length,
-      remainingQuota: `${Math.round(keyPool.calculateRemainingQuota() * 100)}%`,
+      quotaLeft: {
+        all: `${Math.round(keyPool.remainingQuota() * 100)}%`,
+        ...(hasGpt4
+          ? { gpt4: `${Math.round(keyPool.remainingQuota(true) * 100)}%` }
+          : {}),
+      },
     };
   }
 
diff --git a/src/key-management/key-pool.ts b/src/key-management/key-pool.ts
index 6d5ee68..bbaf4df 100644
--- a/src/key-management/key-pool.ts
+++ b/src/key-management/key-pool.ts
@@ -121,9 +121,14 @@ export class KeyPool {
     return { ...oldestKey };
   }
 
+  /** Called by the key checker to update key information. */
   public update(keyHash: string, update: KeyUpdate) {
     const keyFromPool = this.keys.find((k) => k.hash === keyHash)!;
     Object.assign(keyFromPool, { ...update, lastChecked: Date.now() });
+    // Disable the key if it's over the hard limit, provi
+    if (update.usage && keyFromPool.usage >= keyFromPool.hardLimit) {
+      this.disable(keyFromPool);
+    }
   }
 
   public disable(key: Key) {
@@ -158,7 +163,7 @@ export class KeyPool {
   }
 
   /** Returns the remaining aggregate quota for all keys as a percentage. */
-  public calculateRemainingQuota(gpt4Only = false) {
+  public remainingQuota(gpt4Only = false) {
     const keys = this.keys.filter((k) => !gpt4Only || k.isGpt4);
     if (keys.length === 0) return 0;