huge change

wallpapers/flake.lock

@@ -0,0 +1,61 @@
+{
+  "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": 1761373498,
+        "narHash": "sha256-Q/uhWNvd7V7k1H1ZPMy/vkx3F8C13ZcdrKjO7Jv7v0c=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "6a08e6bb4e46ff7fcbb53d409b253f6bad8a28ce",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "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",
+  "version": 7
+}

wallpapers/flake.nix

@@ -0,0 +1,46 @@
+{
+  description = "Dev env for Catppuccin Mocha LUT: ImageMagick + Python (Pillow) with a generator tool";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+
+        # Python environment with Pillow
+        pythonEnv = pkgs.python3.withPackages (ps: [ ps.pillow ]);
+
+        # Small helper that writes the LUT (256x1), a preview, and a palette.txt
+
+      in {
+        # `nix develop` (or `nix-shell` via legacy) drops you into this environment
+        devShells.default = pkgs.mkShell {
+          packages = [
+            # ImageMagick: on most channels this provides `magick` (v7). If not, you'll have `convert`.
+            pkgs.imagemagick
+            pythonEnv
+          ];
+          shellHook = ''
+            echo
+            echo "Catppuccin Mocha dev shell ready."
+            echo "Generate assets into current dir:"
+            echo "  make-mocha-assets ."
+            echo
+          '';
+        };
+
+        # So you can also `nix run .` to execute the generator
+
+        apps.default = {
+          type = "app";
+        };
+
+        formatter = pkgs.nixpkgs-fmt;
+      }
+    );
+}
+

wallpapers/mocha.py

@@ -0,0 +1,22 @@
+from PIL import Image
+import numpy as np
+
+stops = [
+    "#1e1e2e", "#eba0ac", "#f38ba8", "#fab387", "#f9e2af",
+    "#a6e3a1", "#94e2d5", "#89dceb", "#74c7ec", "#89b4fa",
+    "#b4befe", "#cdd6f4"
+]
+
+def hex_to_rgb(h): return tuple(int(h[i:i+2], 16) for i in (1,3,5))
+width, height = 256, 1
+lut = Image.new("RGB", (width, height))
+pixels = lut.load()
+n = len(stops) - 1
+seg = width / n
+for x in range(width):
+    i = min(int(x / seg), n-1)
+    t = (x - i * seg) / seg
+    c0, c1 = np.array(hex_to_rgb(stops[i])), np.array(hex_to_rgb(stops[i+1]))
+    pixels[x,0] = tuple(np.round((1-t)*c0 + t*c1).astype(int))
+lut.save("catppuccin_mocha_lut.png")
+