diff --git a/flake.nix b/flake.nix
index cb17246..1fa2b54 100644
--- a/flake.nix
+++ b/flake.nix
@@ -101,6 +101,7 @@
     (import ./packages) {
       inherit flake-utils nixpkgs;
       deprekages = self.outputs.packages;
+      esp-dev = esp-dev.outputs.packages;
     }
 
     #
diff --git a/nixos/packages/default.pkgs.nix b/nixos/packages/default.pkgs.nix
index 8493fb4..dcb5c63 100644
--- a/nixos/packages/default.pkgs.nix
+++ b/nixos/packages/default.pkgs.nix
@@ -87,6 +87,7 @@ with pkgs;
   hexyl
   htop
   imagemagick
+  inetutils
   jq
   jre
   jmtpfs
@@ -152,7 +153,7 @@ with pkgs;
   ))
 
   # Reversing.
-  #binwalk
+  binwalk
 
   # Development.
   colmena
diff --git a/nixos/packages/flatpak.nix b/nixos/packages/flatpak.nix
index 7398a7f..5d93e49 100644
--- a/nixos/packages/flatpak.nix
+++ b/nixos/packages/flatpak.nix
@@ -9,5 +9,19 @@
       appId = "org.kde.kitinerary-workbench";
       origin = "kitinerary";
     }
+    {
+      appId = "com.github.vikdevelop.photopea_app";
+      origin = "flathub";
+    }
   ];
+
+  services.flatpak.overrides = {
+
+    # Try to use Wayland whenever possible.
+    global = {
+      Context.sockets = [ "wayland" ];
+      Environment.ELECTRON_ELECTRON_OZONE_PLATFORM_HINT = "wayland";
+    };
+
+  };
 }
diff --git a/nixos/packages/offline.pkgs.nix b/nixos/packages/offline.pkgs.nix
index f722b74..15b621d 100644
--- a/nixos/packages/offline.pkgs.nix
+++ b/nixos/packages/offline.pkgs.nix
@@ -30,6 +30,7 @@ with pkgs;
   python3
   cfr
   procyon
+  esp-dev.esp-idf-full
 
   # Build systems.
   cmake
@@ -81,7 +82,6 @@ with pkgs;
   if pkgs.stdenv.isDarwin then
     [
 
-      esp-dev.esp-idf-full
 
     ]
   else
diff --git a/packages/default.nix b/packages/default.nix
index 66c1529..019593c 100644
--- a/packages/default.nix
+++ b/packages/default.nix
@@ -5,6 +5,7 @@
   flake-utils,
   deprekages,
   nixpkgs,
+  esp-dev
 }:
 
 flake-utils.lib.eachDefaultSystem (
@@ -112,6 +113,9 @@ flake-utils.lib.eachDefaultSystem (
       # plasma
       kde-karousel = callPackage ./kde-karousel.nix { };
 
+      # esp32
+      esp-env = esp-dev.${system}.esp-idf-full;
+
       # xonsh and xontribs
       xonsh-with-xontribs = pkgs.xonsh.override {
         extraPackages = pythonPackages: [