move .userrc to .mattrc. fix .zshrc to macos and clean.

Makefile

@@ -1,4 +1,6 @@
-.PHONY: all nvim git shell tmux submodules
+.PHONY: all nvim git shell tmux submodules p10k
+
+ZSH_CUSTOM ?= ${HOME}/.oh-my-zsh/custom
 
 all: submodules nvim git shell tmux
 
@@ -11,8 +13,16 @@ git:
 nvim:
 	stow nvim -t ${HOME}/.config/
 
-shell:
+shell: p10k
 	stow shell -t ${HOME}
 
 tmux: submodules
 	stow tmux -t ${HOME}
+
+p10k:
+	@if [ ! -d ${ZSH_CUSTOM}/themes/powerlevel10k ]; then \
+		echo "installing powerlevel10k -> ${ZSH_CUSTOM}/themes/powerlevel10k"; \
+		git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM}/themes/powerlevel10k; \
+	else \
+		echo "powerlevel10k already installed"; \
+	fi