diff --git a/Makefile b/Makefile
index c3c726c..e418c21 100644
--- a/Makefile
+++ b/Makefile
@@ -7,11 +7,8 @@ MAKEFLAGS += --no-builtin-rules
 HOSTNAME ?= $(shell hostname)
 UNAME_S := $(shell uname -s)
 
-export NIXPKGS_ALLOW_UNFREE := 1
-
 ifeq ($(UNAME_S),Linux)
-	SWITCH_CMD := nixos-rebuild --use-remote-sudo -I nixos-config="modules/machines/$(HOSTNAME)/configuration.nix" switch --flake '.\#' \
-								--impure
+	SWITCH_CMD := nixos-rebuild --use-remote-sudo -I nixos-config="modules/machines/$(HOSTNAME)/configuration.nix" switch --flake '.\#'
 endif
 ifeq ($(UNAME_S),Darwin)
 	SWITCH_CMD := exec darwin-rebuild switch --flake .
diff --git a/modules/machines/hephaestus/hardware.nix b/modules/machines/hephaestus/hardware.nix
index 83d7eaf..124f1ea 100644
--- a/modules/machines/hephaestus/hardware.nix
+++ b/modules/machines/hephaestus/hardware.nix
@@ -7,6 +7,8 @@
 }: {
   imports = [(modulesPath + "/installer/scan/not-detected.nix")];
 
+  nixpkgs.hostPlatform = "x86_64-linux";
+
   boot.initrd.availableKernelModules = [
     "ahci"
     "nvme"
diff --git a/modules/packages/linux.nix b/modules/packages/linux.nix
index 30207ba..40767ad 100644
--- a/modules/packages/linux.nix
+++ b/modules/packages/linux.nix
@@ -9,6 +9,7 @@
 in {
   environment.systemPackages = with pkgs; let
     linux = [
+      android-tools
       bitwarden
       chromium
       cryptsetup
@@ -36,7 +37,6 @@ in {
       kazam
       legendary-gl
       lm_sensors
-      logseq
       mullvad-vpn
       netdata
       nfs-utils
@@ -49,14 +49,12 @@ in {
       qemu
       rustup
       ryujinx
+      signal-desktop
       strace
       tailscale
       traceroute
-      unstable.android-studio
-      unstable.android-tools
       unstable.obsidian
-      unstable.signal-desktop
-      unstable.unityhub
+      unstable.logseq
       unstable.yuzu
       unstable.zoom-us
       usbutils
diff --git a/outputs.nix b/outputs.nix
index a945681..ec386a1 100644
--- a/outputs.nix
+++ b/outputs.nix
@@ -10,7 +10,13 @@
 } @ inputs: {
   nixosConfigurations = let
     modulesDir = ./modules;
-    unstable = import nixpkgs-unstable {};
+    unstable = import nixpkgs-unstable {
+      system = "x86_64-linux";
+      config.allowUnfree = true;
+      config.permittedInsecurePackages = [
+        "electron-25.9.0" # caused by obsidian
+      ];
+    };
     defaultModules = [
       home-manager.nixosModules.home-manager
       ./modules/common/fonts.nix
@@ -71,7 +77,6 @@
     ];
   in {
     hephaestus = nixpkgs.lib.nixosSystem {
-      system = "x86_64-linux";
       specialArgs = {inherit unstable;};
       modules =
         [