RemixOS: how to install Git, NodeJS on an AndroidPC?

RemixOS is relatively new and little to no documentation. I tried finding documentation from Androidx86 too. But can't seem to figure how to install Git, NodeJS..

I tried various Linux command to make it download and install. For example:

apt install git

apt-get, yum, tar -xvf

none of them work. How can I empower the use of Termux to the highest potential for full fledged setup of Javascript development environment. Git, NodeJS and MongoDB...