There is actually not much separating capitalism and socialism other than workers being in control of the means of production.
Socialism doesn't have anything against markets. Socialism doesn't have anything against organizational structures. What it does have issue with is workers not having any democratic say in how their workplaces operate and who they choose to do business with.
That's the thing, not a lot would have to change, other than putting legal protections and norms in place for workplace elections and so on.