feat: Add a flake

.gitignore

@@ -2,3 +2,6 @@
 _site/
 assets/img/*.jpg
 blog.tar.gz
+
+# Nix
+result

flake.lock

@@ -0,0 +1,62 @@
+{
+  "nodes": {
+    "assets": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1652540787,
+        "narHash": "sha256-VU598G+6sAPkmHRIOoZohduMMjwXv/zRf2BYlgIcChA=",
+        "ref": "refs/heads/master",
+        "rev": "de5a0ba39fb9da7eec81f1f59d07af67ec4a9233",
+        "revCount": 17,
+        "type": "git",
+        "url": "https://git.polynom.me/polynom.me/shared-assets.git"
+      },
+      "original": {
+        "type": "git",
+        "url": "https://git.polynom.me/polynom.me/shared-assets.git"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1638239011,
+        "narHash": "sha256-AjhmbT4UBlJWqxY0ea8a6GU2C2HdKUREkG43oRr3TZg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a7ecde854aee5c4c7cd6177f54a99d2c1ff28a31",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "21.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1638239011,
+        "narHash": "sha256-AjhmbT4UBlJWqxY0ea8a6GU2C2HdKUREkG43oRr3TZg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a7ecde854aee5c4c7cd6177f54a99d2c1ff28a31",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "21.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "assets": "assets",
+        "nixpkgs": "nixpkgs_2"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,25 @@
+{
+  description = "The blog hosted at https://blog.polynom.me";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/21.11";
+    assets.url = "git+https://git.polynom.me/polynom.me/shared-assets.git";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    assets
+  }: let
+    supportedSystems = [ "x86_64-linux" ];
+    forAllSystems = nixpkgs.lib.attrsets.genAttrs supportedSystems;
+  in {
+    packages = forAllSystems (system: let
+      pkgs = import nixpkgs { inherit system; };
+    in {
+      default = pkgs.callPackage ./pkgs/blog.nix {
+        shared-assets = assets.packages.${system}.default;
+      };
+    });
+  };
+}

pkgs/blog.nix

@@ -0,0 +1,36 @@
+{
+  lib, stdenv
+, gnumake, imagemagick
+, shared-assets
+}:
+stdenv.mkDerivation {
+  pname = "blog";
+  version = "20211128";
+
+  src = ../.;
+
+  buildInputs = [ shared-assets gnumake imagemagick ];
+
+  patchPhase = ''
+    sed -i Makefile -e "s|python ../shared-assets/makesite.py|python ${shared-assets}/bin/makesite.py|g"
+    sed -i Makefile -e "s|tar -czf blog.tar.gz _site||g"
+  '';
+  
+  buildPhase = ''
+    make buildnosign
+  '';
+  
+  installPhase = ''
+    mkdir -p $out/srv/www/blog
+    cp -vr _site/* $out/srv/www/blog
+  '';
+  
+  doCheck = false;
+  
+  meta = with lib; {
+    description = "The blog hosted at https://blog.polynom.me";
+    homepage = "https://git.polynom.me/polynom.me/blog.polynom.me";
+    maintainers = [];
+    license = licenses.gpl3;
+  };
+}