to be fair , neither the free software movement nor the open source movement (which are distinct ideologically) are explicitly socialist . in a way , especially the free software movement , they embody an extention of liberalism .
both of these movements focus on the individuals freedom and take issue not with developers/companies being systemically incentivized to develop closed source / nonfree software , but with individual developers/companies doing so . thus the solution taken is limited to the individual not to systemic change .