diff --git a/quartz/bootstrap-cli.mjs b/quartz/bootstrap-cli.mjs
index 68b9f571..d550aea7 100755
--- a/quartz/bootstrap-cli.mjs
+++ b/quartz/bootstrap-cli.mjs
@@ -16,6 +16,7 @@ import { transform as cssTransform } from "lightningcss"
 import http from "http"
 import serveHandler from "serve-handler"
 import { WebSocketServer } from "ws"
+import { randomUUID } from "crypto"
 
 const ORIGIN_NAME = "origin"
 const UPSTREAM_NAME = "upstream"
@@ -304,7 +305,8 @@ See the [documentation](https://quartz.jzhao.xyz) for how to get started.
       jsxImportSource: "preact",
       packages: "external",
       metafile: true,
-      sourcemap: true,
+      sourcemap: "inline",
+      sourcesContent: false,
       plugins: [
         sassPlugin({
           type: "css-text",
@@ -372,7 +374,7 @@ See the [documentation](https://quartz.jzhao.xyz) for how to get started.
       }
 
       // bypass module cache
-      const { default: buildQuartz } = await import(cacheFile + `?update=${new Date()}`)
+      const { default: buildQuartz } = await import(cacheFile + `?update=${randomUUID()}`)
       await buildQuartz(argv, clientRefresh)
       clientRefresh()
     }
diff --git a/quartz/plugins/transformers/ofm.ts b/quartz/plugins/transformers/ofm.ts
index 13a32cac..8d8d4573 100644
--- a/quartz/plugins/transformers/ofm.ts
+++ b/quartz/plugins/transformers/ofm.ts
@@ -96,7 +96,7 @@ const calloutMapping: Record<string, keyof typeof callouts> = {
 
 function canonicalizeCallout(calloutName: string): keyof typeof callouts {
   let callout = calloutName.toLowerCase() as keyof typeof calloutMapping
-  return calloutMapping[callout]
+  return calloutMapping[callout] ?? calloutName
 }
 
 const capitalize = (s: string): string => {