Open Source got mainstream in the world of switching ASICs. We nowadays can get open access to steer multiple terabits of packets through the network. This talk tries to cover the path that startet ten years ago with OpenFlow that tried to open up the networking world. We will pass by some more or less known buzzwords like Indigo, OF-DPA, Switchdev, OpenNSL, SAI, P4, SDK-LT and NPL. From this zoo of lower level details we will have a look at their use in Network Operating Systems (NOS) today. Finally trying to answer the question: Are we there yet?