diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 0000000..817c06e
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,38 @@
+name: Check
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  prettier:
+    name: Check Code Format
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install NPM dependencies
+        run: npm ci
+
+      - name: Check Prettier
+        run: npm run prettier:check:ci
+  nix:
+    name: Nix Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: cachix/install-nix-action@v25
+
+      - name: Check Nix Build
+        run: nix build
+
+      - name: Check Nix Flake
+        run: nix flake check
+
diff --git a/flake.lock b/flake.lock
index 3327f15..4595cd7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -54,16 +54,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1714272655,
-        "narHash": "sha256-3/ghIWCve93ngkx5eNPdHIKJP/pMzSr5Wc4rNKE1wOc=",
-        "owner": "nixos",
+        "lastModified": 1715023704,
+        "narHash": "sha256-nf72zOUuXkqN4arcQsngR19KkaQa3cDPtaSJLT8XUWY=",
+        "owner": "auxolotl",
         "repo": "nixpkgs",
-        "rev": "12430e43bd9b81a6b4e79e64f87c624ade701eaf",
+        "rev": "b0fec4b7a197c6d553d353fbe4a1b6105689187c",
         "type": "github"
       },
       "original": {
-        "owner": "nixos",
-        "ref": "nixos-23.11",
+        "owner": "auxolotl",
+        "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -71,8 +71,7 @@
     "root": {
       "inputs": {
         "nixpkgs": "nixpkgs",
-        "snowfall-lib": "snowfall-lib",
-        "unstable": "unstable"
+        "snowfall-lib": "snowfall-lib"
       }
     },
     "snowfall-lib": {
@@ -111,22 +110,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "unstable": {
-      "locked": {
-        "lastModified": 1714253743,
-        "narHash": "sha256-mdTQw2XlariysyScCv2tTE45QSU9v/ezLcHJ22f0Nxc=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "58a1abdbae3217ca6b702f03d3b35125d88a2994",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/nix/packages/website/default.nix b/nix/packages/website/default.nix
index a332a97..303ba82 100644
--- a/nix/packages/website/default.nix
+++ b/nix/packages/website/default.nix
@@ -12,7 +12,7 @@ in
 
     src = lib.snowfall.fs.get-file "/";
 
-    npmDepsHash = "sha256-ze98HddbmkSAgDxJIw1l2YH3EcJ8NKx6Gz++xbcxBM4=";
+    npmDepsHash = "sha256-nNeFo6MF1Bn7Lypgtr/hgpm1lEbdmLR+6/krWH+8zCU=";
 
     npmFlags = ["--ignore-scripts"];
 
diff --git a/package-lock.json b/package-lock.json
index 5631d81..be8b580 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,9 @@
         "typescript": "^5.4.5"
       },
       "devDependencies": {
-        "@tailwindcss/typography": "^0.5.13"
+        "@tailwindcss/typography": "^0.5.13",
+        "prettier": "^3.2.5",
+        "prettier-plugin-astro": "^0.13.0"
       }
     },
     "node_modules/@alloc/quick-lru": {
@@ -5257,6 +5259,41 @@
         "node": ">=8.15"
       }
     },
+    "node_modules/prettier": {
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.2.5.tgz",
+      "integrity": "sha512-3/GWa9aOC0YeD7LUfvOG2NiDyhOWRvt1k+rcKhOuYnMY24iiCphgneUfJDyFXd6rZCAnuLBv6UeAULtrhT/F4A==",
+      "devOptional": true,
+      "bin": {
+        "prettier": "bin/prettier.cjs"
+      },
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/prettier/prettier?sponsor=1"
+      }
+    },
+    "node_modules/prettier-plugin-astro": {
+      "version": "0.13.0",
+      "resolved": "https://registry.npmjs.org/prettier-plugin-astro/-/prettier-plugin-astro-0.13.0.tgz",
+      "integrity": "sha512-5HrJNnPmZqTUNoA97zn4gNQv9BgVhv+et03314WpQ9H9N8m2L9OSV798olwmG2YLXPl1iSstlJCR1zB3x5xG4g==",
+      "devOptional": true,
+      "dependencies": {
+        "@astrojs/compiler": "^1.5.5",
+        "prettier": "^3.0.0",
+        "sass-formatter": "^0.7.6"
+      },
+      "engines": {
+        "node": "^14.15.0 || >=16.0.0"
+      }
+    },
+    "node_modules/prettier-plugin-astro/node_modules/@astrojs/compiler": {
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/@astrojs/compiler/-/compiler-1.8.2.tgz",
+      "integrity": "sha512-o/ObKgtMzl8SlpIdzaxFnt7SATKPxu4oIP/1NL+HDJRzxfJcAkOTAb/ZKMRyULbz4q+1t2/DAebs2Z1QairkZw==",
+      "devOptional": true
+    },
     "node_modules/prismjs": {
       "version": "1.29.0",
       "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.29.0.tgz",
@@ -5989,6 +6026,21 @@
         "queue-microtask": "^1.2.2"
       }
     },
+    "node_modules/s.color": {
+      "version": "0.0.15",
+      "resolved": "https://registry.npmjs.org/s.color/-/s.color-0.0.15.tgz",
+      "integrity": "sha512-AUNrbEUHeKY8XsYr/DYpl+qk5+aM+DChopnWOPEzn8YKzOhv4l2zH6LzZms3tOZP3wwdOyc0RmTciyi46HLIuA==",
+      "devOptional": true
+    },
+    "node_modules/sass-formatter": {
+      "version": "0.7.9",
+      "resolved": "https://registry.npmjs.org/sass-formatter/-/sass-formatter-0.7.9.tgz",
+      "integrity": "sha512-CWZ8XiSim+fJVG0cFLStwDvft1VI7uvXdCNJYXhDvowiv+DsbD1nXLiQ4zrE5UBvj5DWZJ93cwN0NX5PMsr1Pw==",
+      "devOptional": true,
+      "dependencies": {
+        "suf-log": "^2.5.3"
+      }
+    },
     "node_modules/scheduler": {
       "version": "0.23.2",
       "resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
@@ -6313,6 +6365,15 @@
         "node": ">=16 || 14 >=14.17"
       }
     },
+    "node_modules/suf-log": {
+      "version": "2.5.3",
+      "resolved": "https://registry.npmjs.org/suf-log/-/suf-log-2.5.3.tgz",
+      "integrity": "sha512-KvC8OPjzdNOe+xQ4XWJV2whQA0aM1kGVczMQ8+dStAO6KfEB140JEVQ9dE76ONZ0/Ylf67ni4tILPJB41U0eow==",
+      "devOptional": true,
+      "dependencies": {
+        "s.color": "0.0.15"
+      }
+    },
     "node_modules/supports-color": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
diff --git a/package.json b/package.json
index a044f25..dcceb68 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,9 @@
     "start": "astro dev",
     "build": "astro check && astro build",
     "preview": "astro preview",
-    "astro": "astro"
+    "astro": "astro",
+    "prettier:check:ci": "prettier . --check",
+    "prettier:format": "prettier . --write"
   },
   "dependencies": {
     "@astrojs/check": "^0.5.10",
@@ -23,6 +25,8 @@
   },
   "license": "GPL-3.0-or-later",
   "devDependencies": {
-    "@tailwindcss/typography": "^0.5.13"
+    "@tailwindcss/typography": "^0.5.13",
+    "prettier": "^3.2.5",
+    "prettier-plugin-astro": "^0.13.0"
   }
 }
diff --git a/prettier.config.mjs b/prettier.config.mjs
new file mode 100644
index 0000000..a4e8871
--- /dev/null
+++ b/prettier.config.mjs
@@ -0,0 +1,12 @@
+/** @type {import("prettier").Config} */
+export default {
+	plugins: ["prettier-plugin-astro"],
+	overrides: [
+		{
+			files: "*.astro",
+			options: {
+				parser: "astro",
+			},
+		},
+	],
+};