diff --git a/.gitignore b/.gitignore
index ad06a247..9b9dd599 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,9 +5,10 @@ _vendor/
 hugo_stats.json
 .hugo_build.lock
 
-# webpack artifacts
-data/manifest.json
+# webpack output
 static/assets/
+data/manifest.json
+webpack_stats.json
 
 # node/npm/yarn
 node_modules/
diff --git a/.node-version b/.node-version
new file mode 100644
index 00000000..07c142ff
--- /dev/null
+++ b/.node-version
@@ -0,0 +1 @@
+16.13.1
diff --git a/.prettierignore b/.prettierignore
index d9fd8654..67a151e7 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,8 +1,9 @@
-# Hugo stuff that doesn't play well with Prettier
+# Hugo/Webpack stuff that doesn't play well with Prettier
 assets/**/vendor/
 layouts/
 static/
 hugo_stats.json
+webpack_stats.json
 data/manifest.json
 
 # output from Hugo
@@ -15,4 +16,4 @@ _vendor/
 .vercel/
 .lighthouseci/
 .vscode/
-content/notes/dark-mode/example/
+/content/notes/dark-mode/example/
diff --git a/gulpfile.js b/gulpfile.js
index 50618201..b398d52a 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,4 +1,6 @@
 import "dotenv/config";
+import path from "path";
+import { fileURLToPath } from "url";
 import gulp from "gulp";
 import { task as execa } from "gulp-execa";
 import cache from "gulp-cache";
@@ -12,6 +14,9 @@ import imageminPngquant from "imagemin-pngquant";
 import imageminGifsicle from "imagemin-gifsicle";
 import imageminSvgo from "imagemin-svgo";
 
+// https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c#what-do-i-use-instead-of-__dirname-and-__filename
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
 gulp.task(
   "default",
   gulp.series(
@@ -33,10 +38,27 @@ gulp.task(
   )
 );
 
+gulp.task(
+  "analyze",
+  gulp.series(
+    clean,
+    npx("webpack", ["--mode", "production"]),
+    npx("webpack-bundle-analyzer", [
+      // https://github.com/webpack-contrib/webpack-bundle-analyzer#usage-as-a-cli-utility
+      path.resolve(__dirname, "webpack_stats.json"), // path to webpack-generated JSON stats file
+      path.resolve(__dirname, "static/assets/"), // path to finalized bundles
+      "--mode",
+      "server",
+      "--default-sizes",
+      "gzip",
+    ])
+  )
+);
+
 gulp.task("clean", clean);
 
 function clean() {
-  return del(["public/", "builds/", "_vendor/", "static/assets/"]);
+  return del(["public/", "builds/", "_vendor/", "static/assets/", "webpack_stats.json"]);
 }
 
 function optimizeHtml() {
diff --git a/package.json b/package.json
index 106eec9a..7db06574 100644
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
     "build": "gulp",
     "clean": "gulp clean",
     "start": "gulp serve",
+    "analyze-bundle": "gulp analyze",
     "lint": "run-s lint:**",
     "lint:js": "eslint .",
     "lint:css": "stylelint '**/*.{css,scss}'",
@@ -105,6 +106,7 @@
     "web-vitals": "^2.1.2",
     "webpack": "^5.64.4",
     "webpack-assets-manifest": "^5.0.6",
+    "webpack-bundle-analyzer": "^4.5.0",
     "webpack-cli": "^4.9.1",
     "webpack-dev-server": "^4.6.0"
   },
@@ -126,6 +128,7 @@
     ]
   },
   "volta": {
-    "node": "16.13.0"
+    "node": "16.13.1",
+    "yarn": "1.22.17"
   }
 }
diff --git a/webpack.config.js b/webpack.config.js
index 345ade49..04b51d7f 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -7,6 +7,7 @@ import { LicenseWebpackPlugin as LicensePlugin } from "license-webpack-plugin";
 import MiniCssExtractPlugin from "mini-css-extract-plugin";
 import CssMinimizerPlugin from "css-minimizer-webpack-plugin";
 import TerserPlugin from "terser-webpack-plugin";
+import { BundleAnalyzerPlugin } from "webpack-bundle-analyzer";
 
 // PostCSS stuff:
 import autoprefixer from "autoprefixer";
@@ -100,6 +101,11 @@ export default (env, argv) => {
           if (entry.key.startsWith("emoji/") || entry.key.endsWith(".map")) return false;
         },
       }),
+      new BundleAnalyzerPlugin({
+        analyzerMode: "disabled", // this is done in gulp via `yarn analyze-bundle` instead
+        generateStatsFile: true,
+        statsFilename: path.resolve(__dirname, "webpack_stats.json"),
+      }),
     ],
     module: {
       rules: [
diff --git a/yarn.lock b/yarn.lock
index 13fb2014..64029671 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1085,6 +1085,11 @@
   dependencies:
     "@octokit/openapi-types" "^11.2.0"
 
+"@polka/url@^1.0.0-next.20":
+  version "1.0.0-next.21"
+  resolved "https://registry.yarnpkg.com/@polka/url/-/url-1.0.0-next.21.tgz#5de5a2385a35309427f6011992b544514d559aa1"
+  integrity sha512-a5Sab1C4/icpTZVzZc5Ghpz88yQtGOyNqYXcZgOssB2uuAr+wF/MvN6bgtW32q7HHrvBki+BsZ0OuNv6EV3K9g==
+
 "@primer/octicons-react@^16.1.1":
   version "16.1.1"
   resolved "https://registry.yarnpkg.com/@primer/octicons-react/-/octicons-react-16.1.1.tgz#6a9eaffbbf46cb44d344a37a5ff2384973b82d3f"
@@ -1516,7 +1521,12 @@ acorn-jsx@^5.3.1:
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.3.2.tgz#7ed5bb55908b3b2f1bc55c6af1653bada7f07937"
   integrity sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==
 
-acorn@^8.4.1, acorn@^8.6.0:
+acorn-walk@^8.0.0:
+  version "8.2.0"
+  resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-8.2.0.tgz#741210f2e2426454508853a2f44d0ab83b7f69c1"
+  integrity sha512-k+iyHEuPgSw6SbuDpGQM+06HQUa04DZ3o+F6CSzXMvvI5KMvnaEqXe+YVe555R9nn6GPt404fos4wcgpw12SDA==
+
+acorn@^8.0.4, acorn@^8.4.1, acorn@^8.6.0:
   version "8.6.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.6.0.tgz#e3692ba0eb1a0c83eaa4f37f5fa7368dd7142895"
   integrity sha512-U1riIR+lBSNi3IbxtaHOIKdH8sLFv3NYfNv8sg7ZsNhcfl4HF2++BfqqrNAxoCLQW1iiylOj76ecnaUxz+z9yw==
@@ -3412,6 +3422,11 @@ duplexer3@^0.1.4:
   resolved "https://registry.yarnpkg.com/duplexer3/-/duplexer3-0.1.4.tgz#ee01dd1cac0ed3cbc7fdbea37dc0a8f1ce002ce2"
   integrity sha1-7gHdHKwO08vH/b6jfcCo8c4ALOI=
 
+duplexer@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/duplexer/-/duplexer-0.1.2.tgz#3abe43aef3835f8ae077d136ddce0f276b0400e6"
+  integrity sha512-jtD6YG370ZCIi/9GTaJKQxWTZD045+4R4hTk/x1UyoqadyJ9x9CgSi1RlVDQF8U2sxLLSnFkCaMihqljHIWgMg==
+
 duplexify@^3.6.0:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-3.7.1.tgz#2a4df5317f6ccfd91f86d6fd25d8d8a103b88309"
@@ -4883,6 +4898,13 @@ gulplog@^1.0.0:
   dependencies:
     glogg "^1.0.0"
 
+gzip-size@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/gzip-size/-/gzip-size-6.0.0.tgz#065367fd50c239c0671cbcbad5be3e2eeb10e462"
+  integrity sha512-ax7ZYomf6jqPTQ4+XCpUGyXKHk5WweS+e05MBO4/y3WJ5RkmPXNKvX+bx1behVILVwr6JSQvZAku021CHPXG3Q==
+  dependencies:
+    duplexer "^0.1.2"
+
 handle-thing@^2.0.0:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/handle-thing/-/handle-thing-2.0.1.tgz#857f79ce359580c340d43081cc648970d0bb234e"
@@ -6244,7 +6266,7 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@^4.17.14, lodash@^4.17.15:
+lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.20:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -6670,6 +6692,11 @@ mozjpeg@^7.0.0:
     bin-build "^3.0.0"
     bin-wrapper "^4.0.0"
 
+mrmime@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/mrmime/-/mrmime-1.0.0.tgz#14d387f0585a5233d291baba339b063752a2398b"
+  integrity sha512-a70zx7zFfVO7XpnQ2IX1Myh9yY4UYvfld/dikWRnsXxbyvMcfz+u6UfgNAtH+k2QqtJuzVpv6eLTx1G2+WKZbQ==
+
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
@@ -7079,6 +7106,11 @@ open@^8.0.9:
     is-docker "^2.1.1"
     is-wsl "^2.2.0"
 
+opener@^1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/opener/-/opener-1.5.2.tgz#5d37e1f35077b9dcac4301372271afdeb2a13598"
+  integrity sha512-ur5UIdyw5Y7yEj9wLzhqXiy6GZ3Mwx0yGI+5sMn2r0N0v3cKJvUmFH5yPP+WXh9e0xfyzyJX95D8l088DNFj7A==
+
 optionator@^0.9.1:
   version "0.9.1"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.9.1.tgz#4f236a6373dae0566a6d43e1326674f50c291499"
@@ -8751,6 +8783,15 @@ simple-git-hooks@^2.7.0:
   resolved "https://registry.yarnpkg.com/simple-git-hooks/-/simple-git-hooks-2.7.0.tgz#121a5c3023663b8abcc5648c8bfe8619dc263705"
   integrity sha512-nQe6ASMO9zn5/htIrU37xEIHGr9E6wikXelLbOeTcfsX2O++DHaVug7RSQoq+kO7DvZTH37WA5gW49hN9HTDmQ==
 
+sirv@^1.0.7:
+  version "1.0.19"
+  resolved "https://registry.yarnpkg.com/sirv/-/sirv-1.0.19.tgz#1d73979b38c7fe91fcba49c85280daa9c2363b49"
+  integrity sha512-JuLThK3TnZG1TAKDwNIqNq6QA2afLOCcm+iE8D1Kj3GA40pSPsxQjjJl0J8X3tsR7T+CP1GavpzLwYkgVLWrZQ==
+  dependencies:
+    "@polka/url" "^1.0.0-next.20"
+    mrmime "^1.0.0"
+    totalist "^1.0.0"
+
 slash@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
@@ -9638,6 +9679,11 @@ token-types@^4.1.1:
     "@tokenizer/token" "^0.3.0"
     ieee754 "^1.2.1"
 
+totalist@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/totalist/-/totalist-1.1.0.tgz#a4d65a3e546517701e3e5c37a47a70ac97fe56df"
+  integrity sha512-gduQwd1rOdDMGxFG1gEvhV88Oirdo2p+KjoYFU7k2g+i7n6AFFbDQ5kMPUsW0pNbfQsB/cwXvT1i4Bue0s9g5g==
+
 tr46@~0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
@@ -10118,6 +10164,21 @@ webpack-assets-manifest@^5.0.6:
     schema-utils "^3.0"
     tapable "^2.0"
 
+webpack-bundle-analyzer@^4.5.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/webpack-bundle-analyzer/-/webpack-bundle-analyzer-4.5.0.tgz#1b0eea2947e73528754a6f9af3e91b2b6e0f79d5"
+  integrity sha512-GUMZlM3SKwS8Z+CKeIFx7CVoHn3dXFcUAjT/dcZQQmfSZGvitPfMob2ipjai7ovFFqPvTqkEZ/leL4O0YOdAYQ==
+  dependencies:
+    acorn "^8.0.4"
+    acorn-walk "^8.0.0"
+    chalk "^4.1.0"
+    commander "^7.2.0"
+    gzip-size "^6.0.0"
+    lodash "^4.17.20"
+    opener "^1.5.2"
+    sirv "^1.0.7"
+    ws "^7.3.1"
+
 webpack-cli@^4.9.1:
   version "4.9.1"
   resolved "https://registry.yarnpkg.com/webpack-cli/-/webpack-cli-4.9.1.tgz#b64be825e2d1b130f285c314caa3b1ba9a4632b3"
@@ -10331,6 +10392,11 @@ write-file-atomic@^3.0.3:
     signal-exit "^3.0.2"
     typedarray-to-buffer "^3.1.5"
 
+ws@^7.3.1:
+  version "7.5.6"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-7.5.6.tgz#e59fc509fb15ddfb65487ee9765c5a51dec5fe7b"
+  integrity sha512-6GLgCqo2cy2A2rjCNFlxQS6ZljG/coZfZXclldI8FB/1G3CCI36Zd8xy2HrFVACi8tfk5XrgLQEk+P0Tnz9UcA==
+
 ws@^8.1.0:
   version "8.3.0"
   resolved "https://registry.yarnpkg.com/ws/-/ws-8.3.0.tgz#7185e252c8973a60d57170175ff55fdbd116070d"