Refer to main.tex for example usage.
Please feel free to suggest any changes (even better) implement your own.
Copy the beamerthemeRPI.sty file to the directory of your .tex file.
Also copy the logos to the same directory (that the tex file lives in).
This is required for because the logos need to be rendered at the footer of each slide.
You also need to use lualatex compiler instead of pdflatex because of the font. (Arial doesn't work on pdflatex?)
If you are on overleaf, you can do this:
First open the menu
And then select either LuaLaTeX or XeLaTeX as the compiler.