uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/modules/services/web-apps/fluidd.nix

@@ -0,0 +1,66 @@
+{ config, lib, pkgs, ... }:
+with lib;
+let
+  cfg = config.services.fluidd;
+  moonraker = config.services.moonraker;
+in
+{
+  options.services.fluidd = {
+    enable = mkEnableOption "Fluidd, a Klipper web interface for managing your 3d printer";
+
+    package = mkOption {
+      type = types.package;
+      description = "Fluidd package to be used in the module";
+      default = pkgs.fluidd;
+      defaultText = literalExpression "pkgs.fluidd";
+    };
+
+    hostName = mkOption {
+      type = types.str;
+      default = "localhost";
+      description = "Hostname to serve fluidd on";
+    };
+
+    nginx = mkOption {
+      type = types.submodule
+        (import ../web-servers/nginx/vhost-options.nix { inherit config lib; });
+      default = { };
+      example = literalExpression ''
+        {
+          serverAliases = [ "fluidd.''${config.networking.domain}" ];
+        }
+      '';
+      description = "Extra configuration for the nginx virtual host of fluidd.";
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.nginx = {
+      enable = true;
+      upstreams.fluidd-apiserver.servers."${moonraker.address}:${toString moonraker.port}" = { };
+      virtualHosts."${cfg.hostName}" = mkMerge [
+        cfg.nginx
+        {
+          root = mkForce "${cfg.package}/share/fluidd/htdocs";
+          locations = {
+            "/" = {
+              index = "index.html";
+              tryFiles = "$uri $uri/ /index.html";
+            };
+            "/index.html".extraConfig = ''
+              add_header Cache-Control "no-store, no-cache, must-revalidate";
+            '';
+            "/websocket" = {
+              proxyWebsockets = true;
+              proxyPass = "http://fluidd-apiserver/websocket";
+            };
+            "~ ^/(printer|api|access|machine|server)/" = {
+              proxyWebsockets = true;
+              proxyPass = "http://fluidd-apiserver$request_uri";
+            };
+          };
+        }
+      ];
+    };
+  };
+}