move documentation of environment variables into lib/env.ts

lib/config/constants.ts

@@ -3,7 +3,7 @@ export const POSTS_DIR = "notes";
 
 // path to an image used in various places to represent the site, relative to project root
 // IMPORTANT: must be included in next.config.ts under "outputFileTracingIncludes"
-export const AVATAR_PATH = "app/avatar.jpg";
+export const AVATAR_PATH = "app/selfie.jpg";
 
 // maximum width of content wrapper (e.g. for images) in pixels
 export const MAX_WIDTH = 865;

lib/config/seo.ts

@@ -1,47 +0,0 @@
-import * as config from ".";
-import { BASE_URL } from "./constants";
-import type { Metadata } from "next";
-
-const defaultMetadata: Metadata = {
-  metadataBase: new URL(BASE_URL),
-  title: {
-    template: `%s – ${config.siteName}`,
-    default: `${config.siteName} – ${config.shortDescription}`,
-  },
-  description: config.longDescription,
-  openGraph: {
-    siteName: config.siteName,
-    title: {
-      template: "%s",
-      default: `${config.siteName} – ${config.shortDescription}`,
-    },
-    url: "/",
-    locale: config.siteLocale?.replace("-", "_"),
-    type: "website",
-  },
-  twitter: {
-    creator: `@${config.authorSocial?.twitter}`,
-  },
-  alternates: {
-    canonical: "/",
-    types: {
-      "application/rss+xml": [
-        {
-          title: `${config.siteName} (RSS)`,
-          url: "/feed.xml",
-        },
-      ],
-      "application/atom+xml": [
-        {
-          title: `${config.siteName} (Atom)`,
-          url: "/feed.atom",
-        },
-      ],
-    },
-  },
-  other: {
-    humans: "/humans.txt",
-  },
-};
-
-export default defaultMetadata;