attempt to make edge functions a tad bit lighter

lib/helpers/compile-note.ts

@@ -1,7 +1,6 @@
 import { serialize } from "next-mdx-remote/serialize";
 import { minify } from "uglify-js";
 import { getNoteData } from "./parse-notes";
-import { IS_DEV_SERVER } from "../config/constants";
 
 // remark/rehype markdown plugins
 import remarkGfm from "remark-gfm";
@@ -38,14 +37,15 @@ export const compileNote = async (slug: string): Promise<NoteWithSource> => {
   // TODO: next-mdx-remote v4 doesn't (yet?) minify compiled JSX output, see:
   // https://github.com/hashicorp/next-mdx-remote/pull/211#issuecomment-1013658514
   // ...so for now, let's do it manually (and conservatively) with uglify-js when building for production.
-  const compiledSource = IS_DEV_SERVER
-    ? source.compiledSource
-    : minify(source.compiledSource, {
-        toplevel: true,
-        parse: {
-          bare_returns: true,
-        },
-      }).code;
+  const compiledSource =
+    process.env.NODE_ENV === "production"
+      ? minify(source.compiledSource, {
+          toplevel: true,
+          parse: {
+            bare_returns: true,
+          },
+        }).code
+      : source.compiledSource;
 
   return {
     frontMatter,