Move custom packages

flake-modules/publish.nix

@@ -0,0 +1,21 @@
+{
+  perSystem =
+    { pkgs, ... }:
+    {
+      packages.publish = pkgs.writeShellApplication {
+        name = "publish";
+
+        runtimeInputs = with pkgs; [
+          rsync
+          php
+        ];
+
+        text = ''
+          vendor/bin/sculpin generate --env prod
+
+          rsync -uvrP static/ output_prod "$@"
+          rsync -uvrP output_prod/ nixedo.oliverdavies.uk:/var/www/vhosts/website-sculpin "$@"
+        '';
+      };
+    };
+}