Batwing triply periodical Schoen surface

Hi all! I am spendig hours looking for a way to create this triply periodical surface without any success. I thought it was easier but no success. Anyone could help? Thanks
(i already looked to some other old topics in the gh forum but none of them solves my questions, one of them even post the same image

Right now I am ‘cheating’ drawing the edges by hand and use “minimal surface from curve” component from millipede. Clearly the results are no very satisfying an moreover is all a mesh, I would like to get that result with a NURBS surface…

Not sure if this is what you are looking for…

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peeerfect thank you!
That project from Vincent Callebaut seems easy to make, manage the space and understand, but once you try to re-model you find out it is not that easy, especially if you are not a pro in gh!
Thanks for the precious help