Make VPN list via flake

Wow, I didn't know I can do this...

flake.lock

@@ -885,11 +885,29 @@
         "nixpkgs": "nixpkgs_5",
         "nixpkgs-pinned": "nixpkgs-pinned",
         "nixpkgs-stable": "nixpkgs-stable",
+        "russia-blocked-geoip": "russia-blocked-geoip",
         "sops-nix": "sops-nix",
         "stylix": "stylix",
         "yazi": "yazi"
       }
     },
+    "russia-blocked-geoip": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1773222740,
+        "narHash": "sha256-x2We3wwRUjfatG5je8P9ip1snK3NvtTHv9tKlPsqOwI=",
+        "owner": "runetfreedom",
+        "repo": "russia-blocked-geoip",
+        "rev": "6138773989321235eac52193a889197c38efd942",
+        "type": "github"
+      },
+      "original": {
+        "owner": "runetfreedom",
+        "ref": "release",
+        "repo": "russia-blocked-geoip",
+        "type": "github"
+      }
+    },
     "rust-overlay": {
       "inputs": {
         "nixpkgs": "nixpkgs_2"
@@ -1170,4 +1188,3 @@
   "root": "root",
   "version": 7
 }
-

flake.nix

@@ -38,6 +38,11 @@
       url = "github:nix-community/home-manager";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    russia-blocked-geoip = {
+      url = "github:runetfreedom/russia-blocked-geoip/release";
+      flake = false;
+    };
   };
 
   outputs = { self, nixpkgs, nixpkgs-stable, nixpkgs-pinned, home-manager, ... }@inputs: let

modules/host/vpn.nix

@@ -1,4 +1,4 @@
-{ pkgs, config, ... }: {
+{ inputs, pkgs, config, ... }: {
   systemd.services.v2raya = {
     enable = true;
     description = "v2rayA gui client";
@@ -17,12 +17,7 @@
   };
 
   environment.etc = {
-    "v2raya/ru_geoip.dat".source = pkgs.fetchurl {
-      name = "geoip.dat";
-      url = "https://github.com/runetfreedom/russia-blocked-geoip/releases/download/202603040949/geoip.dat";
-      hash = "sha256-TmWQqoC26+vrJ2xaRrIiPM2kp9xhrw9h9H8yjq4CA7U=";
-    };
-
+    "v2raya/ru_geoip.dat".source = "${inputs.russia-blocked-geoip}/geoip.dat";
     "v2raya/bolt.db".source = config.sops.secrets.vpn_bolt.path;
   };
 }