feat: Add a flake

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "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"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,21 @@
+{
+  description = "The website hosted at https://polynom.me";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/21.11";
+  };
+
+  outputs = {
+    self,
+    nixpkgs
+  }: 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/shared-assets.nix {};
+    });
+  };
+}

pgp-sign.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python
+
 import re
 import sys
 import subprocess

pkgs/shared-assets.nix

@@ -0,0 +1,28 @@
+{
+  lib, stdenv
+, python3 # for makesite.py and pgp-sign.py
+}:
+
+stdenv.mkDerivation {
+  pname = "shared-assets";
+  version = "202205120-01";
+
+  src = ../.;
+
+  propagatedBuildInputs = [ python3 python3.pkgs.markdown ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp -v makesite.py pgp-sign.py $out/bin
+    cp -vr assets/ $out/
+  '';
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Shared assets for polynom.me web pages";
+    homepage = "https://git.polynom.me/polynom.me/shared-assets";
+    maintainers = [];
+    license = licenses.gpl3;
+  };
+}