I want to build "organizational operating systems" for govts. (incorporating "best practices") using FLOSS ERP software (I've done e-Government research in acad

I want to build "organizational operating systems" for govts. (incorporating "best practices") using FLOSS ERP software (I've done e-Government research in academia, and I can also code). People who have experience in this space: is there a market for such a thing or do govts. prefer commercial (i.e. non FLOSS) software systems?