He literally already has. As I said. You don't exactly become a federal state. You first become an interim administration for a few years and then you become a state. The FGS recognized the SSC already in October.
And stop with this fictional alliance that is only mentioned by a certain type of people. you sound stupid.
Somalia doesn't care for SSc and neither does the international community. It's not something that should be encouraged.
But beyond all that. State building is a long and painful process. You won't make it through unless you have seriously compelling reasons to.