Doesn't seem to be same thing. OpenWorm is computer simulation, while the OP plans to build a model based on observing an actual living individual [1].
That's about right. My end product is also a computer simulation, as far as that goes, but I'm taking an obsessively data-driven approach, motivated by the advent of new technologies for single-neuron measurement and perturbation in living, behaving animals. Meanwhile, OpenWorm is taking a bottom-up approach, driven by physics and other first principles. We'll meet in the middle eventually.