Move nix config up to top level of directory

Makefile

@@ -1,10 +1,10 @@
 $(eval HOSTNAME=$(shell hostname))
-NIXOS_CONFIG := $(PWD)/nixos/$(HOSTNAME).nix
-HOMEMANAGER_CONFIG := $(PWD)/nixos/home/$(HOSTNAME)-$(USER).nix
+NIXOS_CONFIG := $(PWD)/$(HOSTNAME).nix
+HOMEMANAGER_CONFIG := $(PWD)/home/$(HOSTNAME)-$(USER).nix
 CONFIG_DIR := $(if $(XDG_CONFIG_HOME), $(XDG_CONFIG_HOME), $(HOME)/.config)
 HOMEMANAGER_CONFIG_DIR := $(CONFIG_DIR)/home-manager
 
-.PHONY: default all clean home nixos install test
+.PHONY: default all clean nixos home
 
 default:
 	[ -e /etc/nixos/ ] && make nixos || make home