modularize system config

modules/system/programs.nix

@@ -0,0 +1,28 @@
+{ pkgs, ... }: {
+  services = {
+    sunshine = {
+      enable = true;
+      autoStart = true;
+      capSysAdmin = true;
+      openFirewall = true;
+    };
+    printing = {
+      enable = true;
+      drivers = with pkgs; [ hplip ];
+    };
+  };
+
+  programs = {
+    gdk-pixbuf.modulePackages = [ pkgs.librsvg ];
+    zsh.enable = true;
+    nix-ld.enable = true;
+    steam.enable = true;
+    appimage = {
+      enable = true;
+      binfmt = true;
+    };
+    kdeconnect = {
+      enable = true;
+    };
+  };
+}