Replaced Makefile with Justfile

Justfile

@@ -0,0 +1,26 @@
+default:
+    @just --list
+
+all:
+	@echo "No command provided"
+
+home:
+	echo "HOME is: '${HOME}'"
+
+machine:
+	@echo "${HOSTNAME}"
+
+switch:
+	nh os switch -a -H "${HOSTNAME}" . 
+
+test:
+	nh os test -a -H "${HOSTNAME}" .
+
+update:
+	sudo nix flake update
+
+upgrade: update switch
+
+clean:
+	sudo nix-collect-garbage -d
+	sudo nix-store --optimise