diff --git a/.gitignore b/.gitignore
index bd001b5..b12e90a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,4 @@
 flake.lock
 .DS_STORE
-**/.DS_STORE
 result
 result-*
diff --git a/files/ghostty/cursor-smear-black.glsl b/files/ghostty/cursor-smear-black.glsl
new file mode 100644
index 0000000..817ff11
--- /dev/null
+++ b/files/ghostty/cursor-smear-black.glsl
@@ -0,0 +1,114 @@
+float getSdfRectangle(in vec2 p, in vec2 xy, in vec2 b)
+{
+    vec2 d = abs(p - xy) - b;
+    return length(max(d, 0.0)) + min(max(d.x, d.y), 0.0);
+}
+
+// Based on Inigo Quilez's 2D distance functions article: https://iquilezles.org/articles/distfunctions2d/
+// Potencially optimized by eliminating conditionals and loops to enhance performance and reduce branching
+
+float seg(in vec2 p, in vec2 a, in vec2 b, inout float s, float d) {
+    vec2 e = b - a;
+    vec2 w = p - a;
+    vec2 proj = a + e * clamp(dot(w, e) / dot(e, e), 0.0, 1.0);
+    float segd = dot(p - proj, p - proj);
+    d = min(d, segd);
+
+    float c0 = step(0.0, p.y - a.y);
+    float c1 = 1.0 - step(0.0, p.y - b.y);
+    float c2 = 1.0 - step(0.0, e.x * w.y - e.y * w.x);
+    float allCond = c0 * c1 * c2;
+    float noneCond = (1.0 - c0) * (1.0 - c1) * (1.0 - c2);
+    float flip = mix(1.0, -1.0, step(0.5, allCond + noneCond));
+    s *= flip;
+    return d;
+}
+
+float getSdfParallelogram(in vec2 p, in vec2 v0, in vec2 v1, in vec2 v2, in vec2 v3) {
+    float s = 1.0;
+    float d = dot(p - v0, p - v0);
+
+    d = seg(p, v0, v3, s, d);
+    d = seg(p, v1, v0, s, d);
+    d = seg(p, v2, v1, s, d);
+    d = seg(p, v3, v2, s, d);
+
+    return s * sqrt(d);
+}
+
+vec2 normalize(vec2 value, float isPosition) {
+    return (value * 2.0 - (iResolution.xy * isPosition)) / iResolution.y;
+}
+
+float antialising(float distance) {
+    return 1. - smoothstep(0., normalize(vec2(2., 2.), 0.).x, distance);
+}
+
+float determineStartVertexFactor(vec2 a, vec2 b) {
+    // Conditions using step
+    float condition1 = step(b.x, a.x) * step(a.y, b.y); // a.x < b.x && a.y > b.y
+    float condition2 = step(a.x, b.x) * step(b.y, a.y); // a.x > b.x && a.y < b.y
+
+    // If neither condition is met, return 1 (else case)
+    return 1.0 - max(condition1, condition2);
+}
+
+vec2 getRectangleCenter(vec4 rectangle) {
+    return vec2(rectangle.x + (rectangle.z / 2.), rectangle.y - (rectangle.w / 2.));
+}
+float ease(float x) {
+    return pow(1.0 - x, 3.0);
+}
+
+const vec4 TRAIL_COLOR = vec4(0.0, 0.2, 0.5, 0.1);
+const float DURATION = 0.15; //IN SECONDS
+
+void mainImage(out vec4 fragColor, in vec2 fragCoord)
+{
+    #if !defined(WEB)
+    fragColor = texture(iChannel0, fragCoord.xy / iResolution.xy);
+    #endif
+    // Normalization for fragCoord to a space of -1 to 1;
+    vec2 vu = normalize(fragCoord, 1.);
+    vec2 offsetFactor = vec2(-.5, 0.5);
+
+    // Normalization for cursor position and size;
+    // cursor xy has the postion in a space of -1 to 1;
+    // zw has the width and height
+    vec4 currentCursor = vec4(normalize(iCurrentCursor.xy, 1.), normalize(iCurrentCursor.zw, 0.));
+    vec4 previousCursor = vec4(normalize(iPreviousCursor.xy, 1.), normalize(iPreviousCursor.zw, 0.));
+
+    // When drawing a parellelogram between cursors for the trail i need to determine where to start at the top-left or top-right vertex of the cursor
+    float vertexFactor = determineStartVertexFactor(currentCursor.xy, previousCursor.xy);
+    float invertedVertexFactor = 1.0 - vertexFactor;
+
+    // Set every vertex of my parellogram
+    vec2 v0 = vec2(currentCursor.x + currentCursor.z * vertexFactor, currentCursor.y - currentCursor.w);
+    vec2 v1 = vec2(currentCursor.x + currentCursor.z * invertedVertexFactor, currentCursor.y);
+    vec2 v2 = vec2(previousCursor.x + currentCursor.z * invertedVertexFactor, previousCursor.y);
+    vec2 v3 = vec2(previousCursor.x + currentCursor.z * vertexFactor, previousCursor.y - previousCursor.w);
+
+    float sdfCurrentCursor = getSdfRectangle(vu, currentCursor.xy - (currentCursor.zw * offsetFactor), currentCursor.zw * 0.5);
+    float sdfTrail = getSdfParallelogram(vu, v0, v1, v2, v3);
+
+    float progress = clamp((iTime - iTimeCursorChange) / DURATION, 0.0, 1.0);
+    float easedProgress = ease(progress);
+    // Distance between cursors determine the total length of the parallelogram;
+    vec2 centerCC = getRectangleCenter(currentCursor);
+    vec2 centerCP = getRectangleCenter(previousCursor);
+    float lineLength = distance(centerCC, centerCP);
+
+    vec4 newColor = vec4(fragColor);
+    // Compute fade factor based on distance along the trail
+    float fadeFactor = 1.0 - smoothstep(lineLength, sdfCurrentCursor, easedProgress * lineLength);
+
+    // Apply fading effect to trail color
+    vec4 fadedTrailColor = TRAIL_COLOR * fadeFactor;
+
+    // Blend trail with fade effect
+    newColor = mix(newColor, fadedTrailColor, antialising(sdfTrail));
+    // Draw current cursor
+    newColor = mix(newColor, TRAIL_COLOR, antialising(sdfCurrentCursor));
+    newColor = mix(newColor, fragColor, step(sdfCurrentCursor, 0.));
+    fragColor = mix(fragColor, newColor, step(sdfCurrentCursor, easedProgress * lineLength));
+}
diff --git a/files/ghostty/cursor-smear-blue.glsl b/files/ghostty/cursor-smear-blue.glsl
new file mode 100644
index 0000000..da59ebe
--- /dev/null
+++ b/files/ghostty/cursor-smear-blue.glsl
@@ -0,0 +1,114 @@
+float getSdfRectangle(in vec2 p, in vec2 xy, in vec2 b)
+{
+    vec2 d = abs(p - xy) - b;
+    return length(max(d, 0.0)) + min(max(d.x, d.y), 0.0);
+}
+
+// Based on Inigo Quilez's 2D distance functions article: https://iquilezles.org/articles/distfunctions2d/
+// Potencially optimized by eliminating conditionals and loops to enhance performance and reduce branching
+
+float seg(in vec2 p, in vec2 a, in vec2 b, inout float s, float d) {
+    vec2 e = b - a;
+    vec2 w = p - a;
+    vec2 proj = a + e * clamp(dot(w, e) / dot(e, e), 0.0, 1.0);
+    float segd = dot(p - proj, p - proj);
+    d = min(d, segd);
+
+    float c0 = step(0.0, p.y - a.y);
+    float c1 = 1.0 - step(0.0, p.y - b.y);
+    float c2 = 1.0 - step(0.0, e.x * w.y - e.y * w.x);
+    float allCond = c0 * c1 * c2;
+    float noneCond = (1.0 - c0) * (1.0 - c1) * (1.0 - c2);
+    float flip = mix(1.0, -1.0, step(0.5, allCond + noneCond));
+    s *= flip;
+    return d;
+}
+
+float getSdfParallelogram(in vec2 p, in vec2 v0, in vec2 v1, in vec2 v2, in vec2 v3) {
+    float s = 1.0;
+    float d = dot(p - v0, p - v0);
+
+    d = seg(p, v0, v3, s, d);
+    d = seg(p, v1, v0, s, d);
+    d = seg(p, v2, v1, s, d);
+    d = seg(p, v3, v2, s, d);
+
+    return s * sqrt(d);
+}
+
+vec2 normalize(vec2 value, float isPosition) {
+    return (value * 2.0 - (iResolution.xy * isPosition)) / iResolution.y;
+}
+
+float antialising(float distance) {
+    return 1. - smoothstep(0., normalize(vec2(2., 2.), 0.).x, distance);
+}
+
+float determineStartVertexFactor(vec2 a, vec2 b) {
+    // Conditions using step
+    float condition1 = step(b.x, a.x) * step(a.y, b.y); // a.x < b.x && a.y > b.y
+    float condition2 = step(a.x, b.x) * step(b.y, a.y); // a.x > b.x && a.y < b.y
+
+    // If neither condition is met, return 1 (else case)
+    return 1.0 - max(condition1, condition2);
+}
+
+vec2 getRectangleCenter(vec4 rectangle) {
+    return vec2(rectangle.x + (rectangle.z / 2.), rectangle.y - (rectangle.w / 2.));
+}
+float ease(float x) {
+    return pow(1.0 - x, 3.0);
+}
+
+const vec4 TRAIL_COLOR = vec4(0.8, 1.0, 1.0, 0.1);
+const float DURATION = 0.1; //IN SECONDS
+
+void mainImage(out vec4 fragColor, in vec2 fragCoord)
+{
+    #if !defined(WEB)
+    fragColor = texture(iChannel0, fragCoord.xy / iResolution.xy);
+    #endif
+    // Normalization for fragCoord to a space of -1 to 1;
+    vec2 vu = normalize(fragCoord, 1.);
+    vec2 offsetFactor = vec2(-.5, 0.5);
+
+    // Normalization for cursor position and size;
+    // cursor xy has the postion in a space of -1 to 1;
+    // zw has the width and height
+    vec4 currentCursor = vec4(normalize(iCurrentCursor.xy, 1.), normalize(iCurrentCursor.zw, 0.));
+    vec4 previousCursor = vec4(normalize(iPreviousCursor.xy, 1.), normalize(iPreviousCursor.zw, 0.));
+
+    // When drawing a parellelogram between cursors for the trail i need to determine where to start at the top-left or top-right vertex of the cursor
+    float vertexFactor = determineStartVertexFactor(currentCursor.xy, previousCursor.xy);
+    float invertedVertexFactor = 1.0 - vertexFactor;
+
+    // Set every vertex of my parellogram
+    vec2 v0 = vec2(currentCursor.x + currentCursor.z * vertexFactor, currentCursor.y - currentCursor.w);
+    vec2 v1 = vec2(currentCursor.x + currentCursor.z * invertedVertexFactor, currentCursor.y);
+    vec2 v2 = vec2(previousCursor.x + currentCursor.z * invertedVertexFactor, previousCursor.y);
+    vec2 v3 = vec2(previousCursor.x + currentCursor.z * vertexFactor, previousCursor.y - previousCursor.w);
+
+    float sdfCurrentCursor = getSdfRectangle(vu, currentCursor.xy - (currentCursor.zw * offsetFactor), currentCursor.zw * 0.5);
+    float sdfTrail = getSdfParallelogram(vu, v0, v1, v2, v3);
+
+    float progress = clamp((iTime - iTimeCursorChange) / DURATION, 0.0, 1.0);
+    float easedProgress = ease(progress);
+    // Distance between cursors determine the total length of the parallelogram;
+    vec2 centerCC = getRectangleCenter(currentCursor);
+    vec2 centerCP = getRectangleCenter(previousCursor);
+    float lineLength = distance(centerCC, centerCP);
+
+    vec4 newColor = vec4(fragColor);
+    // Compute fade factor based on distance along the trail
+    float fadeFactor = 1.0 - smoothstep(lineLength, sdfCurrentCursor, easedProgress * lineLength);
+
+    // Apply fading effect to trail color
+    vec4 fadedTrailColor = TRAIL_COLOR * fadeFactor;
+
+    // Blend trail with fade effect
+    newColor = mix(newColor, fadedTrailColor, antialising(sdfTrail));
+    // Draw current cursor
+    newColor = mix(newColor, TRAIL_COLOR, antialising(sdfCurrentCursor));
+    newColor = mix(newColor, fragColor, step(sdfCurrentCursor, 0.));
+    fragColor = mix(fragColor, newColor, step(sdfCurrentCursor, easedProgress * lineLength));
+}
diff --git a/flake.nix b/flake.nix
index 9e9b079..ee9f680 100644
--- a/flake.nix
+++ b/flake.nix
@@ -145,6 +145,16 @@
         system = "aarch64-darwin";
       };
 
+      # julia's cattop
+      nixosConfigurations.cattop = mkSystem "cattop" {
+        user = "julia";
+        host = "cattop";
+        system = "x86_64-linux";
+        extraModules = [
+          nixos-cosmic.nixosModules.default
+        ];
+      };
+
       # generate checks for "nix flake check --all-systems --no-build"
       checks.aarch64-darwin = builtins.listToAttrs (
         builtins.map (
diff --git a/modules/home/default.nix b/modules/home/default.nix
index 773ddfe..b9fd238 100644
--- a/modules/home/default.nix
+++ b/modules/home/default.nix
@@ -16,7 +16,14 @@ in
   imports = mainHomeImports ++ [
     ./macos/sketchybar.nix
   ];
-  programs = {
+  options = {
+    programs.ghostty.shader = lib.mkOption {
+      type = lib.types.str;
+      default = { };
+      description = "set the ghostty shader, relative to 'files/ghostty'";
+    };
+  };
+  config.programs = {
     home-manager.enable = true;
     nix-index.enable = true;
 
@@ -89,5 +96,9 @@ in
         test -r '/Users/${user.username}/.opam/opam-init/init.fish' && source '/Users/${user.username}/.opam/opam-init/init.fish' > /dev/null 2> /dev/null; or true
       '';
     };
+
+    ghostty.settings.custom-shader = lib.mkIf (
+      cfg.ghostty.shader != null
+    ) "${../../files/ghostty}/${cfg.ghostty.shader}";
   };
 }
diff --git a/modules/macos/default.nix b/modules/macos/default.nix
index 41568bb..2e0067f 100644
--- a/modules/macos/default.nix
+++ b/modules/macos/default.nix
@@ -1,5 +1,4 @@
 {
-  pkgs,
   lib,
   ...
 }:
diff --git a/modules/neovim/default.nix b/modules/neovim/default.nix
index a9e226a..be917ad 100644
--- a/modules/neovim/default.nix
+++ b/modules/neovim/default.nix
@@ -184,17 +184,9 @@
         };
       };
     };
-
     binds = {
       whichKey.enable = true;
       cheatsheet.enable = true;
-      # discourages bad keyboard habit, e.g. disables arrow keys, explains better binds
-      # https://github.com/m4xshen/hardtime.nvim
-      hardtime-nvim.enable = true;
-      hardtime-nvim.setupOpts = {
-        disable_mouse = false;
-        restriction_mode = "hint"; # default behavior is lenient
-      };
     };
     ui = {
       borders.enable = true;
@@ -206,19 +198,6 @@
         enable = false;
         navbuddy.enable = config.vim.ui.breadcrumbs.enable;
       };
-      smartcolumn = {
-        enable = true;
-        setupOpts.custom_colorcolumn = {
-          # this is a freeform module, it's `buftype = int;` for configuring column position
-          nix = "110";
-          ruby = "120";
-          java = "130";
-          go = [
-            "90"
-            "130"
-          ];
-        };
-      };
     };
     notes = {
       todo-comments.enable = true;
diff --git a/modules/nixos/default.nix b/modules/nixos/default.nix
index c094a9b..facf334 100644
--- a/modules/nixos/default.nix
+++ b/modules/nixos/default.nix
@@ -7,7 +7,6 @@
   imports = [
     ./boot.nix
     ./ld.nix
-    ./nvidia.nix
     ./services.nix
   ];
   # make 'shared.darwin' not an error to define.
diff --git a/users/chloe/configuration.nix b/users/chloe/configuration.nix
index 3c0630e..aa0b485 100644
--- a/users/chloe/configuration.nix
+++ b/users/chloe/configuration.nix
@@ -6,6 +6,8 @@
     git
   ];
 
+  services.tailscale.enable = true;
+
   # configuration for shared modules.
   # all custom options in 'shared' for clarity.
   shared.darwin = {
diff --git a/users/chloe/home.nix b/users/chloe/home.nix
index 5bcabdf..ee1c0ea 100644
--- a/users/chloe/home.nix
+++ b/users/chloe/home.nix
@@ -10,7 +10,9 @@ in
       let
         # packages to always install
         all = [
-          ffmpeg
+          (ffmpeg.override {
+            withSvtav1 = true;
+          })
           ripgrep
           uv
           nh
@@ -33,12 +35,26 @@ in
   };
   programs = {
     # sort-lines:start
-    bat.enable = true;
+    # bat.enable = true;
     btop.enable = true;
     fd.enable = true;
     hyfetch.enable = true;
     # sort-lines:end
 
+    ghostty = {
+      enable = true;
+      shader = "cursor-smear-black.glsl";
+      package = null;
+      settings = {
+        theme = "catppuccin-latte";
+        font-family = "AT Name Mono";
+        adjust-cursor-thickness = 1;
+        minimum-contrast = 1.1;
+        background-opacity = 0.9;
+        background-blur = true;
+      };
+    };
+
     # zsh is the shell i use
     zsh = {
       enable = true;
diff --git a/users/chloe/vim.nix b/users/chloe/vim.nix
index 121bd1e..79cb730 100644
--- a/users/chloe/vim.nix
+++ b/users/chloe/vim.nix
@@ -14,12 +14,6 @@ _: {
       foldenable = true;
       linebreak = true;
     };
-    binds = {
-      hardtime-nvim.setupOpts = {
-        restriction_mode = "block";
-        disable_mouse = false;
-      };
-    };
     git = {
       gitsigns.setupOpts = {
         current_line_blame = true;
diff --git a/users/julia/cattop/configuration.nix b/users/julia/cattop/configuration.nix
new file mode 100644
index 0000000..4b0e96f
--- /dev/null
+++ b/users/julia/cattop/configuration.nix
@@ -0,0 +1,127 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, lib, pkgs, ... }:
+
+{
+  imports =
+    [ # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+    ];
+
+  # Use the systemd-boot EFI boot loader.
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # networking.hostName = "nixos"; # Define your hostname.
+  # Pick only one of the below networking options.
+  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
+  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
+
+  # Set your time zone.
+  # time.timeZone = "Europe/Amsterdam";
+
+  # Configure network proxy if necessary
+  # networking.proxy.default = "http://user:password@proxy:port/";
+  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
+
+  # Select internationalisation properties.
+  # i18n.defaultLocale = "en_US.UTF-8";
+  # console = {
+  #   font = "Lat2-Terminus16";
+  #   keyMap = "us";
+  #   useXkbConfig = true; # use xkb.options in tty.
+  # };
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+
+  # Enable the GNOME Desktop Environment.
+  services.xserver.displayManager.gdm.enable = true;
+  services.xserver.desktopManager.gnome.enable = true;
+  
+
+  # Configure keymap in X11
+  # services.xserver.xkb.layout = "us";
+  # services.xserver.xkb.options = "eurosign:e,caps:escape";
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+
+  # Enable sound.
+  # services.pulseaudio.enable = true;
+  # OR
+  # services.pipewire = {
+  #   enable = true;
+  #   pulse.enable = true;
+  # };
+
+  # Enable touchpad support (enabled default in most desktopManager).
+  # services.libinput.enable = true;
+
+  # Define a user account. Don't forget to set a password with ‘passwd’.
+  users.users.fish = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+    packages = with pkgs; [
+      tree
+      git
+      nh
+      vim
+      fish
+    ];
+  };
+
+  programs.firefox.enable = true;
+
+  # List packages installed in system profile.
+  # You can use https://search.nixos.org/ to find more packages (and options).
+  environment.systemPackages = with pkgs; [
+    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
+    wget
+  ];
+
+  # Some programs need SUID wrappers, can be configured further or are
+  # started in user sessions.
+  programs.mtr.enable = true;
+  programs.gnupg.agent = {
+    enable = true;
+    enableSSHSupport = true;
+  };
+
+  # List services that you want to enable:
+
+  # Enable the OpenSSH daemon.
+  # services.openssh.enable = true;
+
+  # Open ports in the firewall.
+  # networking.firewall.allowedTCPPorts = [ ... ];
+  # networking.firewall.allowedUDPPorts = [ ... ];
+  # Or disable the firewall altogether.
+  # networking.firewall.enable = false;
+
+  # Copy the NixOS configuration file and link it from the resulting system
+  # (/run/current-system/configuration.nix). This is useful in case you
+  # accidentally delete configuration.nix.
+  # system.copySystemConfiguration = true;
+
+  # This option defines the first version of NixOS you have installed on this particular machine,
+  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
+  #
+  # Most users should NEVER change this value after the initial install, for any reason,
+  # even if you've upgraded your system to a new NixOS release.
+  #
+  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
+  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
+  # to actually do that.
+  #
+  # This value being lower than the current NixOS release does NOT mean your system is
+  # out of date, out of support, or vulnerable.
+  #
+  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
+  # and migrated your data accordingly.
+  #
+  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
+  system.stateVersion = "25.05"; # Did you read the comment?
+}
+
diff --git a/users/julia/cattop/hardware-configuration.nix b/users/julia/cattop/hardware-configuration.nix
new file mode 100644
index 0000000..1c401e4
--- /dev/null
+++ b/users/julia/cattop/hardware-configuration.nix
@@ -0,0 +1,40 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports =
+    [ (modulesPath + "/installer/scan/not-detected.nix")
+    ];
+
+  boot.initrd.availableKernelModules = [ "xhci_pci" "thunderbolt" "vmd" "nvme" ];
+  boot.initrd.kernelModules = [ ];
+  boot.kernelModules = [ "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  fileSystems."/" =
+    { device = "/dev/disk/by-uuid/8eb0d6a2-b8cf-4ef2-ba2a-e25a5555b0bc";
+      fsType = "ext4";
+    };
+
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-uuid/3B51-4A1C";
+      fsType = "vfat";
+      options = [ "fmask=0077" "dmask=0077" ];
+    };
+
+  swapDevices =
+    [ { device = "/dev/disk/by-uuid/58ee9d19-292f-49b5-9979-341b42e8e09d"; }
+    ];
+
+  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
+  # (the default) this is the recommended approach. When using systemd-networkd it's
+  # still possible to use this option, but it's recommended to use it in conjunction
+  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
+  networking.useDHCP = lib.mkDefault true;
+  # networking.interfaces.wlp0s20f3.useDHCP = lib.mkDefault true;
+
+  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
+  hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+}
diff --git a/users/julia/cattop/home.nix b/users/julia/cattop/home.nix
new file mode 100644
index 0000000..e9b97ff
--- /dev/null
+++ b/users/julia/cattop/home.nix
@@ -0,0 +1,77 @@
+{
+  inputs,
+  config,
+  pkgs,
+  lib,
+  userSettings,
+  systemSettings,
+  ...
+}:
+
+{
+  home = {
+    stateVersion = "23.05"; # Don't change this unless upgrading Home Manager versions
+
+    packages = with pkgs; [
+      # General applications
+      ghostty
+      stremio
+      julia
+      qbittorrent
+      calibre
+      mpv
+      signal-desktop
+      python3
+      gh
+
+      # Gaming
+      bottles
+      lutris
+      mangohud
+      dxvk_2
+      steam-run
+      vulkan-tools
+      path-of-building
+      wineWowPackages.stable
+      winetricks
+      (prismlauncher.override { gamemodeSupport = true; })
+
+      # System & desktop tools
+      wofi
+      xorg.xauth
+      kdePackages.dolphin
+      xdg-desktop-portal-gtk
+      xclip
+      pavucontrol
+      ethtool
+      grub2
+      efibootmgr
+      distrobox
+
+      # Dev tools
+      legcord
+      hyfetch
+      arduino-cli
+      rust-bin.stable.latest.default
+      tytools
+      inputs.zls.packages.x86_64-linux.zls
+      platformio
+      usbutils
+      teensy-loader-cli
+      teensyduino
+    ];
+  };
+
+  programs = {
+    btop.enable = true;
+    hyfetch.enable = true;
+
+    gh = {
+      enable = true;
+      gitCredentialHelper.enable = true;
+    };
+
+    # Uncomment if you want to use MangoHud system-wide
+    # mangohud.enable = true;
+  };
+}
diff --git a/users/julia/cattop/home.nix.old b/users/julia/cattop/home.nix.old
new file mode 100644
index 0000000..9565aad
--- /dev/null
+++ b/users/julia/cattop/home.nix.old
@@ -0,0 +1,72 @@
+{
+  inputs,
+  config,
+  pkgs,
+  lib,
+  userSettings,
+  systemSettings,
+  ...
+}:
+{
+  home = {
+    stateVersion = "23.05"; # Please read the comment before changing.
+
+    packages = with pkgs; [
+      #building macos apps hard :(
+      ghostty
+      stremio
+      julia
+      qbittorrent
+
+      #gaming
+      bottles
+      lutris
+      mangohud
+      dxvk_2
+      steam-run
+      vulkan-tools
+      path-of-building
+      wineWowPackages.stable
+      winetricks
+      (prismlauncher.override { gamemodeSupport = true; })
+
+      #window manager stuff
+      wofi
+      xorg.xauth
+      #linux tools
+      legcord
+      pavucontrol
+      ethtool
+      grub2
+      efibootmgr
+      distrobox
+      xdg-desktop-portal-gtk
+      xclip
+      kdePackages.dolphin
+      hyfetch
+      arduino-cli
+      python3
+      gh
+      #broken on macos
+      calibre
+      mpv
+      wireguard-tools
+      signal-desktop
+      inputs.zls.packages.x86_64-linux.zls
+      rust-bin.stable.latest.default
+    ];
+
+    # programs.mangohud.enable = true;
+    programs = {
+      btop.enable = true;
+      hyfetch.enable = true;
+      programs.gh = {
+        enable = true;
+        gitCredentialHelper = {
+          enable = true;
+        };
+      };
+    };
+
+  };
+}
diff --git a/users/julia/configuration.nix b/users/julia/configuration.nix
new file mode 100644
index 0000000..cfdfd29
--- /dev/null
+++ b/users/julia/configuration.nix
@@ -0,0 +1,9 @@
+# Applied to all systems
+{
+  inputs,
+  pkgs,
+  host,
+  ...
+}:
+{
+}
diff --git a/users/julia/user.nix b/users/julia/user.nix
new file mode 100644
index 0000000..edb5aea
--- /dev/null
+++ b/users/julia/user.nix
@@ -0,0 +1,13 @@
+rec {
+  username = "fish"; # username
+  name = "Julia"; # name/identifier
+  email = "fish@fishcat.fish"; # email (used for certain configurations)
+  dotfilesDir = "~/config"; # absolute path of the local repo
+  theme = "catppuccin-mocha"; # name of theme that stylix will use
+  browser = "firefox"; # Default browser; must select one from ./user/app/browser/
+  term = "ghostty"; # Default terminal command;
+  font = "iosevka"; # Selected font
+  editor = "neovim"; # Default editor;
+  timeZone = "America/Los_Angeles";
+  sexuality = "transgender";
+}
diff --git a/users/julia/vim.nix b/users/julia/vim.nix
new file mode 100644
index 0000000..eb49c66
--- /dev/null
+++ b/users/julia/vim.nix
@@ -0,0 +1,21 @@
+{ ... }:
+{
+  vim.languages.astro.enable = true;
+  vim.theme.extraConfig = ''
+    if vim.g.neovide then
+      vim.g.neovide_cursor_trail_size = 0.3
+      vim.g.neovide_scroll_animation_length = 0.1;
+
+      vim.keymap.set('n', '<D-s>', ':w<CR>') -- Save
+      vim.keymap.set('v', '<D-c>', '"+y') -- Copy
+      vim.keymap.set('n', '<D-v>', '"+P') -- Paste normal mode
+      vim.keymap.set('v', '<D-v>', '"+P') -- Paste visual mode
+      vim.keymap.set('c', '<D-v>', '<C-R>+') -- Paste command mode
+      vim.keymap.set('i', '<D-v>', '<ESC>l"+Pli') -- Paste insert mode
+    end
+    vim.api.nvim_set_keymap("", '<D-v>', '+p<CR>', { noremap = true, silent = true})
+    vim.api.nvim_set_keymap('!', '<D-v>', '<C-R>+', { noremap = true, silent = true})
+    vim.api.nvim_set_keymap('t', '<D-v>', '<C-R>+', { noremap = true, silent = true})
+    vim.api.nvim_set_keymap('v', '<D-v>', '<C-R>+', { noremap = true, silent = true})
+  '';
+}