I am not deleting anything. They can have all of my poorly written misleading answers.

At this point just install firefox…

One more note about safety when it comes to open source or FOSS, is that you should use only the main repository and distributions provided by the official team. Often people clone existing repo, insert malicious code and publish it as their app on play store etc.

You can install vim, git and ranger on termux. So the minimal setup is pretty easy to achieve.