diff --git a/nix/configuration/configuration.nix b/nix/configuration/configuration.nix
index faa014a..a18d814 100644
--- a/nix/configuration/configuration.nix
+++ b/nix/configuration/configuration.nix
@@ -32,6 +32,7 @@
     ./roles/graphics
     ./roles/hydra
     ./roles/iso
+    ./roles/iso_mount
     ./roles/kanshi
     ./roles/kodi
     ./roles/kubernetes
diff --git a/nix/configuration/hosts/odo/default.nix b/nix/configuration/hosts/odo/default.nix
index 5b3546b..11be98b 100644
--- a/nix/configuration/hosts/odo/default.nix
+++ b/nix/configuration/hosts/odo/default.nix
@@ -75,6 +75,7 @@
   me.gpg.enable = true;
   me.graphical = true;
   me.graphics_card_type = "amd";
+  me.iso_mount.enable = true;
   me.kanshi.enable = false;
   me.kubernetes.enable = true;
   me.latex.enable = true;
diff --git a/nix/configuration/hosts/quark/default.nix b/nix/configuration/hosts/quark/default.nix
index a19a0d4..30a5233 100644
--- a/nix/configuration/hosts/quark/default.nix
+++ b/nix/configuration/hosts/quark/default.nix
@@ -66,6 +66,7 @@
   me.gpg.enable = true;
   me.graphical = true;
   me.graphics_card_type = "amd";
+  me.iso_mount.enable = true;
   me.kanshi.enable = false;
   me.kubernetes.enable = true;
   me.latex.enable = true;
diff --git a/nix/configuration/roles/iso_mount/default.nix b/nix/configuration/roles/iso_mount/default.nix
new file mode 100644
index 0000000..32c0af6
--- /dev/null
+++ b/nix/configuration/roles/iso_mount/default.nix
@@ -0,0 +1,45 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+
+let
+  iso_mount =
+    (pkgs.writeScriptBin "iso_mount" (builtins.readFile ./files/iso_mount.bash)).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+  iso_unmount =
+    (pkgs.writeScriptBin "iso_unmount" (builtins.readFile ./files/iso_unmount.bash)).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+
+in
+{
+  imports = [ ];
+
+  options.me = {
+    iso_mount.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = true;
+      description = "Whether we want to install iso_mount.";
+    };
+  };
+
+  config = lib.mkIf config.me.iso_mount.enable (
+    lib.mkMerge [
+      {
+        environment.systemPackages = [
+          iso_mount
+          iso_unmount
+        ];
+      }
+    ]
+  );
+}
diff --git a/nix/configuration/roles/iso_mount/files/iso_mount.bash b/nix/configuration/roles/iso_mount/files/iso_mount.bash
new file mode 100644
index 0000000..143e14d
--- /dev/null
+++ b/nix/configuration/roles/iso_mount/files/iso_mount.bash
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# Mount a full-disk image as a loopback device so you can mount individual partitions from inside of it.
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+exec udisksctl loop-setup -r -f "${@}"
diff --git a/nix/configuration/roles/iso_mount/files/iso_unmount.bash b/nix/configuration/roles/iso_mount/files/iso_unmount.bash
new file mode 100644
index 0000000..1771e21
--- /dev/null
+++ b/nix/configuration/roles/iso_mount/files/iso_unmount.bash
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# Mount a full-disk image as a loopback device so you can mount individual partitions from inside of it.
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+exec udisksctl loop-delete "${@}"
diff --git a/nix/configuration/roles/rpcs3/default.nix b/nix/configuration/roles/rpcs3/default.nix
index 6990584..fbb6d9a 100644
--- a/nix/configuration/roles/rpcs3/default.nix
+++ b/nix/configuration/roles/rpcs3/default.nix
@@ -5,6 +5,14 @@
   ...
 }:
 
+let
+  rpcs3_config_yaml = (
+    pkgs.writeTextFile {
+      name = "config.yml";
+      text = lib.generators.toYAML { } config.me.rpcs3.config;
+    }
+  );
+in
 {
   imports = [ ];
 
@@ -15,6 +23,29 @@
       example = true;
       description = "Whether we want to install rpcs3.";
     };
+
+    rpcs3.config = lib.mkOption {
+      type = lib.types.nullOr lib.types.attrs;
+      default = {
+        VFS = {
+          "Enable /host_root/" = false;
+        };
+        Video = {
+          "Write Color Buffers" = false;
+          VSync = true;
+          "Performance Overlay" = {
+            Enabled = true;
+          };
+        };
+        Miscellaneous = {
+          "Pause emulation on RPCS3 focus loss" = true;
+          "Start games in fullscreen mode" = true;
+          "Pause Emulation During Home Menu" = true;
+        };
+      };
+      example = null;
+      description = "RPCS3's config.yml in nix form.";
+    };
   };
 
   config = lib.mkIf config.me.rpcs3.enable (
@@ -39,8 +70,21 @@
           }
         ];
 
-        # .config/rpcs3/config.yml
-        # .config/rpcs3/GuiConfigs/CurrentSettings.ini
+        me.rpcs3.config.Core."Use LLVM CPU" =
+          lib.mkIf (config.me.optimizations.enable) config.me.optimizations.arch;
+
+        home-manager.users.talexander =
+          { pkgs, ... }:
+          {
+            home.file.".config/rpcs3/config.yml" = lib.mkIf (config.me.rpcs3.config != null) {
+              source = rpcs3_config_yaml;
+            };
+            home.file.".config/rpcs3/GuiConfigs/CurrentSettings.ini" = {
+              source = ./files/CurrentSettings.ini;
+            };
+          };
+
+        # TODO?: .config/rpcs3/GuiConfigs/CurrentSettings.ini
 
         environment.persistence."/persist" = lib.mkIf (!config.me.buildingIso) {
           hideMounts = true;
@@ -84,6 +128,13 @@
                 group = "talexander";
                 mode = "0755";
               }
+              {
+                # Controller config.
+                directory = ".config/rpcs3/input_configs";
+                user = "talexander";
+                group = "talexander";
+                mode = "0755";
+              }
             ];
           };
         };
diff --git a/nix/configuration/roles/rpcs3/files/CurrentSettings.ini b/nix/configuration/roles/rpcs3/files/CurrentSettings.ini
new file mode 100644
index 0000000..b6354c4
--- /dev/null
+++ b/nix/configuration/roles/rpcs3/files/CurrentSettings.ini
@@ -0,0 +1,5 @@
+[Meta]
+currentStylesheet=Darker Style by TheMitoSan
+
+[main_window]
+infoBoxEnabledWelcome=false