diff --git a/.gitignore b/.gitignore
index f33c685..45a9d6c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /.quarto/
 result
+.DS_Store
diff --git a/flake.lock b/flake.lock
index 602cbcf..b2fc0a7 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,59 +1,25 @@
 {
   "nodes": {
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1731533236,
-        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1737672001,
-        "narHash": "sha256-YnHJJ19wqmibLQdUeq9xzE6CjrMA568KN/lFPuSVs4I=",
+        "lastModified": 1756886854,
+        "narHash": "sha256-6tooT142NLcFjt24Gi4B0G1pgWLvfw7y93sYEfSHlLI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "035f8c0853c2977b24ffc4d0a42c74f00b182cd8",
+        "rev": "0e6684e6c5755325f801bda1751a8a4038145d7d",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-24.11",
+        "ref": "nixos-25.05",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index 85bdc4d..ac71c79 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,25 +1,26 @@
+# filepath: flake.nix
 {
   description = "Quarto website build";
-
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
-    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
+  outputs = {
+    self,
+    nixpkgs,
+  }: let
+    systems = ["x86_64-linux" "aarch64-linux" "aarch64-darwin"];
+    forAllSystems = nixpkgs.lib.genAttrs systems;
+    reqPkgs = pkgs: with pkgs; [quarto];
+  in {
+    packages = forAllSystems (
+      system: let
         pkgs = nixpkgs.legacyPackages.${system};
-        reqs = with pkgs; [
-          quarto
-        ];
-      in
-      {
-        packages.default = pkgs.stdenv.mkDerivation {
-          name = "personal website";
+        website = pkgs.stdenv.mkDerivation {
+          name = "personal-website";
           src = ./.;
 
-          buildInputs = reqs;
+          buildInputs = reqPkgs pkgs;
 
           buildPhase = ''
             mkdir home
@@ -32,9 +33,19 @@
             cp -r build/* $out/
           '';
         };
+      in {
+        default = website;
+      }
+    );
 
-        devShells.default = pkgs.mkShell {
-          buildInputs = reqs;
+    devShells = forAllSystems (
+      system: let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in {
+        default = pkgs.mkShell {
+          buildInputs = reqPkgs pkgs;
         };
-      });
-}
\ No newline at end of file
+      }
+    );
+  };
+}
diff --git a/index.qmd b/index.qmd
index 3fbf2d4..726aed5 100644
--- a/index.qmd
+++ b/index.qmd
@@ -22,7 +22,7 @@ NSW, 2033
 
 ::: {.flex-item}
 
-I am a Postdoctoral fellow at the University of New South Wales School of Marketing. I got my PhD in Economics at the Vienna University of Economics and Business where I worked at the Institute for Retailing & Data Science.
+I am a Postdoctoral fellow at the University of New South Wales School of Marketing. Previously, I got my PhD in Economics at the Vienna University of Economics and Business where I worked at the Institute for Retailing & Data Science.
 <br>
 
 My research focuses on Quantitative Marketing, Platform and Social Media Analytics, and the Economics of the Music Industry. I explore how key stakeholders—such as streaming platforms, social media, activist groups, and technological innovations in content delivery and promotion—affect the dynamics of the music industry.
diff --git a/styles.css b/styles.css
index d29326e..5fc122a 100644
--- a/styles.css
+++ b/styles.css
@@ -1,41 +1,42 @@
 /* css styles */
 .navbar-logo {
-  max-height: 20px; /* Adjust the height as needed */
+  max-height: 20px;
 }
 
 .flex-container {
     display: flex;
     flex-wrap: wrap;
-    justify-content: space-between; /* Add space between columns */
-    margin: -10px; /* Adjust for padding */
+    justify-content: space-between;
+    margin: -10px;
 }
 
 .flex-item {
-    flex: 1 1 30%; /* Grow, shrink, and set a base width of 45% */
-    padding: 10px; /* Padding around items */
-    box-sizing: border-box; /* Include padding in width calculations */
+    flex: 1 1 30%;
+    padding: 10px;
+    box-sizing: border-box;
 }
 
 .flex-item:last-child {
-    flex: 1 1 60%; /* Right column: larger, 60% width */
+    flex: 1 1 60%;
 }
 
 @media (max-width: 768px) {
     .flex-container {
-        flex-direction: column; /* Stack items vertically */
+        flex-direction: column;
     }
 
     .flex-item:first-child {
-        order: 1; /* Move the first column below the second */
+        order: 1;
     }
 
     .flex-item:last-child {
-        order: 2; /* Keep the second column on top */
+        order: 2;
     }
 }
 
 @media (max-width: 600px) {
     .flex-item {
-        flex: 1 1 100%; /* Full width on very small screens */
+        flex: 1 1 100%;
     }
-}
\ No newline at end of file
+}
+