This is something that would be right up my alley but I am under the impression that government contracts (in the US at least) are not easy to land because the barrier to entry is high and the competition is fierce. The process is so bureaucratic that most of the business effort is landing the contract in the first place, producing the thing under contract is almost an afterthought in comparison, and that part is often sub-contracted out. This is part of the reason we hear stories about millions of dollars and months of effort being spent on 30% of a CRUD website that a talented full-stack developer could have whipped out in under a week.

And in the IT space, your competition is companies like Lockheed Martin... Although you might have a leg up if your company is veteran-, woman-, or minority owned, see Offices of Small and Disadvantaged Business Utilization.