filter = $(shell cowsay -l | sort -R | head -1)

zoo = $(patsubst Forts/fortune_%.md,Zoo/animal-%.md,$(forts))

$(zoo): Zoo/animal-%.md: Forts/fortune_%.md
	@mkdir -p $(@D)
	echo '```' > $@
	cat $< | cowsay -f $(filter) >> $@
	echo '```' >> $@

progs += forts
progs += $(zoo)

dross += Zoo/
