// system update, there could be changes to the state of store version
apt-get update && apt-get upgrade

//check linux version ( 2021.01.19. current:  apt/stable 2.1.15, Linux 4.4.23+)
termux-info

// Access Android and Chrome hardware features.
apt install termux-api

// install nodejs
apt install nodejs

//check npm version ( 2021.01.19. current:  6.14.10)
npm -v

// check node version (current: v14.15.4)
node -v