diff --git a/docs/discord-integration.md b/docs/discord-integration.md
index 4eebb2a..e0af2ea 100644
--- a/docs/discord-integration.md
+++ b/docs/discord-integration.md
@@ -1,7 +1,7 @@
 # Discord announcements
 
 MineGeo uses your Discord bot to send messages through Discord's REST API.
-It runs on Vercel and does not need a continuously running bot process, Gateway,
+It does not need a continuously running bot process, Gateway,
 Message Content intent, slash commands, an interactions URL, or a Discord webhook.
 The bot can appear offline while announcements work.
 
@@ -28,7 +28,7 @@ a transfer of lobby ownership. The counts are a snapshot when posted.
 1. Open the [Discord Developer Portal](https://discord.com/developers/applications)
    and select **New Application**. Name it **MineGeo**, or your preferred bot name.
 2. Open **Bot**. Create the bot if prompted, then use **Reset Token** to obtain
-   its bot token. Keep it private; save it directly into Vercel as described below.
+   its bot token. Keep it private; save it directly in Dokploy as described below.
 3. Under **Installation**, enable **Guild Install**. For the guild's install
    settings, choose the **bot** scope and these permissions: **View Channels**,
    **Send Messages**, **Embed Links**. You do not need Administrator permission.
@@ -46,10 +46,9 @@ a transfer of lobby ownership. The counts are a snapshot when posted.
 Discord setup references: [application setup](https://docs.discord.com/developers/quick-start/getting-started),
 [bot permissions](https://docs.discord.com/developers/topics/permissions).
 
-## Add the Vercel environment variables
+## Add the Dokploy environment variables
 
-Open [MineGeo's environment settings](https://vercel.com/pavel-melnikovs-projects-74f979c2/minegeo/settings/environment-variables).
-Add these for **Production**:
+In Dokploy, open the MineGeo application's **Environment** settings and add:
 
 | Name | Value | Sensitive? |
 | --- | --- | --- |
@@ -63,9 +62,8 @@ Leave a channel variable blank to disable that announcement type. A Discord
 invite such as `MINEGEO_DISCORD_URL` controls the footer button only; it cannot
 send announcements.
 
-After saving, open **Deployments**, choose the newest Production deployment,
-select **Redeploy**, and use the current environment variables. Vercel applies
-environment changes to new deployments. See [Vercel's environment-variable guide](https://vercel.com/docs/environment-variables).
+After saving, redeploy the MineGeo application so the server uses the new
+environment values.
 
 For local use, put the same variables in ignored `.env.local` (ordinary `.env`
 also works) and restart the server. Use a publicly reachable HTTPS `MINEGEO_URL`
diff --git a/docs/dokploy-deployment.md b/docs/dokploy-deployment.md
index b18f4cc..ff2165d 100644
--- a/docs/dokploy-deployment.md
+++ b/docs/dokploy-deployment.md
@@ -37,7 +37,7 @@ Also set the following in Dokploy's regular runtime environment:
 - `NEXT_PUBLIC_SUPABASE_URL`
 - `NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY`
 - `SUPABASE_SECRET_KEY` (server-only; never a build argument)
-- `MINEGEO_URL` (the public HTTPS site origin)
+- `MINEGEO_URL=https://minegeo.site` (the public HTTPS site origin)
 - `MINEGEO_ALLOW_ANY_ORIGIN=false`
 
 Add any optional production variables from `.env.example` in Dokploy's
diff --git a/worker/main.ts b/worker/main.ts
index bd36122..43755c6 100644
--- a/worker/main.ts
+++ b/worker/main.ts
@@ -30,6 +30,17 @@ function check<T>(r: {
   if (r.error) throw new Error(r.error.message);
   return r.data!;
 }
+function summarizeWorkerError(error: unknown) {
+  const message = (error instanceof Error ? error.message : String(error))
+    .replace(/\s+/g, " ")
+    .trim();
+  if (/<(?:!doctype|html|head|body)\b/i.test(message)) {
+    const status = message.match(/\b([45]\d{2})\b/)?.[1];
+    const provider = /cloudflare/i.test(message) ? "Cloudflare" : "upstream";
+    return `${provider} returned an HTML error${status ? ` (${status})` : ""}`;
+  }
+  return message.length > 500 ? `${message.slice(0, 497)}…` : message;
+}
 async function processJob(job: {
   id: string;
   dataset_id: string;
@@ -427,7 +438,9 @@ while (!stopping) {
     if (jobs?.length) await processJob(jobs[0]);
     else await new Promise((r) => setTimeout(r, 2500));
   } catch (error) {
-    console.error("Worker:", error instanceof Error ? error.message : error);
+    console.error(
+      `Worker error (retrying in 5s): ${summarizeWorkerError(error)}`,
+    );
     await new Promise((r) => setTimeout(r, 5000));
   }
 }