diff --git a/home/.config/fish/config.fish b/home/.config/fish/config.fish
index c424614..36f8662 100644
--- a/home/.config/fish/config.fish
+++ b/home/.config/fish/config.fish
@@ -8,3 +8,5 @@ if status is-interactive
 		zoxide init fish | source
 	end
 end
+
+export GPG_TTY=(tty)
diff --git a/nix/hardware/audio.nix b/nix/hardware/audio.nix
index b751e4f..b2715e3 100644
--- a/nix/hardware/audio.nix
+++ b/nix/hardware/audio.nix
@@ -17,5 +17,6 @@ in lib.mkIf cfg.hardware.audio {
 	environment.systemPackages = with pkgs; [
 		alsa-utils
 		acpid
+		pulseaudio
 	];
 }
diff --git a/nix/hardware/mini.nix b/nix/hardware/mini.nix
index 02c1d0c..c82aaea 100644
--- a/nix/hardware/mini.nix
+++ b/nix/hardware/mini.nix
@@ -41,6 +41,12 @@
 
 	programs.nix-ld.enable = true;
 
+	home-manager.users.${config.kp2pml30.username}.programs.git.extraConfig = {
+		user.signingkey = "0xCD6528BAC23E3E34!";
+		commit.gpgsign = true;
+		tag.gpgSign = true;
+	};
+
 	hardware = {
 		graphics = {
 			enable = true;
diff --git a/nix/personal/default.nix b/nix/personal/default.nix
index 2393644..b1cd9c0 100644
--- a/nix/personal/default.nix
+++ b/nix/personal/default.nix
@@ -40,6 +40,15 @@ in {
 			HandleLidSwitch=hibernate
 		'';
 
+		services.pcscd = {
+			enable = true;
+		};
+
+		programs.gnupg.agent = {
+			enable = true;
+			enableSSHSupport = true;
+		};
+
 		i18n.supportedLocales = [
 			"C.UTF-8/UTF-8"
 			"en_US.UTF-8/UTF-8"
diff --git a/nix/personal/user.nix b/nix/personal/user.nix
index ab9f12d..74160c5 100644
--- a/nix/personal/user.nix
+++ b/nix/personal/user.nix
@@ -9,7 +9,11 @@ let
 in {
 	users.users.${cfg.username} = {
 		isNormalUser = true;
-		extraGroups = [ "wheel" "networkmanager" ];
+		extraGroups = [
+			"wheel" # sudo
+			"networkmanager"
+			"dialout" "uucp" # esp32
+		];
 		shell = pkgs.fish;
 		hashedPassword = "$6$UK6oHr2gPRYD4Rak$lgF.mYReC0jahNuI4kt0j/CsrajVzMprvp3HgjKwwsjYHU6/Ur9jfROXZbKhhpyCLRmnlCpWeRCbHEYO/jhIv/";
 	};