You can host your own Satisfactory server, but it’s not as straight forward as renting one from us:
1) Download and Install SteamCMD.
2) Install the Satisfactory dedicated server files (1690800)
3) Configure and start the server.
With LOW.MS you can skip the steps above, majority of players prefer to purchase a dedicated Satisfactory server so you don't need to worry about the hardware and network.