My issue was not the undercompensation: computer science and engineering are luxuriously funded with 100% in comparison to other research fields.

The question always is what you have to do for that 100%. If it’s really fully public funded and your professor does not expect corporate consulting/research projects from you, then consider yourself very lucky and take that chance!

Project work can be very fulfilling along research when you can apply your problem solutions. You must be insanely careful if these topics do not overlap since it drains your time and you would be compensated better with less stress in an industry job.

Though, it sounds very good, in your case :-)