add nixos configuration

nixos/configuration.nix

@@ -0,0 +1,82 @@
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{ config, lib, pkgs, ... }:
+
+{
+	imports =
+		[
+			./hardware-configuration.nix
+		];
+
+	boot.loader.systemd-boot.enable = true;
+	boot.loader.efi.canTouchEfiVariables = true;
+
+	networking.hostName = "nixos";
+	networking.networkmanager.enable = true;
+
+	time.timeZone = "Europe/Oslo";
+	services.xserver.enable = true;
+
+	services.xserver.xkb.layout = "us";
+	services.xserver.displayManager.gdm.enable = true;
+	services.xserver.desktopManager.gnome.enable = true;
+	services.printing.enable = true;
+
+	services.pipewire = {
+		enable = true;
+		pulse.enable = true;
+	};
+
+	hardware.uinput.enable = true;
+	services.libinput.enable = true;
+	services.kanata = {
+        enable = true;
+        keyboards.default.configFile = "/etc/nixos/kanata.kbd";
+	};
+
+	users.users.ivar = {
+		isNormalUser = true;
+		extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
+		packages = with pkgs; [
+			tree
+		];
+	};
+
+	programs.firefox.enable = true;
+
+	environment.systemPackages = with pkgs; [
+		neovim
+		git
+		lazygit
+		wget
+		stow
+		st
+
+		go
+		gopls
+
+        fzf
+
+		python313
+		python313Packages.pip
+		python313Packages.pipx
+		poetry
+		basedpyright
+
+		rustc
+		cargo
+
+		gcc
+		clang-tools
+	];
+
+	programs.mtr.enable = true;
+	programs.gnupg.agent = {
+		enable = true;
+		enableSSHSupport = true;
+	};
+
+	system.stateVersion = "25.05"; # dont change ever
+
+}
+