I am not afraid. If something breaks after deploy on Friday, we will fix it the next Monday. The manager is afraid. That's why we never deploy on Fridays.

Bootstrap is a framework (i.e. just a path to follow for the development process). However, many people use Bootstrap as a plug-n-play UI kit. Yes, there is no fun using "just another Bootstrap site". But if it does its job, why not? Thus, Bootstrap is not good nor it is bad. It is just a tool. Don't judge people by the tool they use.

Why don't you agree to work remotely with your boss? Sometimes it is the easiest way to do it.

Fixedsys is the font that I love the most.

Large data will never become human-readable, because humans are not design to read large data. If the visual space is limited, then only display the limited set of data. Think about the most important characteristic of the data. You will probably have only 1-3 things that really matter. Then figure out a way to display them on a compact screen. Don't rely on diagrams and charts only, sometimes just a single number is much easier to grasp.