LUT node for compositor

I wish there was a way to add a custom Lut file to the compositor for VFX pipeline Blender Compositor that's fundamental, it's a LUT node really. Sure, it's "technically" possible with OCIO and whatnot, but adding in files and then suffering with that huge notepad text is hell if you ever tried you would know.

When you do compositing for VFX, you have camera footage that is filmed in log, and then you want to convert it from log to rec 709 or something similar,r and you struggle so much with it. You want to use ARRI Log or Sony Log or whatever, and you simply can't do it straightforwardly...