composer global require dmitryzlotin/php-project-lvl1
https://asciinema.org/a/MNhPFWtbybafSUbuWEw1ehh2W
PATH=$PATH:~/.config/composer/vendor/bin
export PATH
brain-even
https://asciinema.org/a/RczXs2lJtFWZYSo1xvf1XiyIF
brain-calc
https://asciinema.org/a/6iAh1ZysktFtq8Q4PHALdNMRk
brain-gcd
https://asciinema.org/a/5zycwHnBbz0iYx0GP4lt2gh6F
brain-progression
https://asciinema.org/a/AgrH2P26tvHzMnQr3Vj1wJzR4
brain-prime
https://asciinema.org/a/yxWD7ScCcuKs9Zcb43wbx6sl9