Render animation in reverse?

I have a short 150 frame animation that is taking a long time to render because it has raytracing. I copied the blend file to my laptop so that it can work at the same time my desktop is working on the animation. Right now the desktop is doing frames 1-100, while the laptop is doing 100-150. (I’m rendering them as PNGs and combining them later.) The desktop and laptop won’t finish at the same time causing extra work on my part - so here is my question, finally: Can I tell blender to render from frame 150 down to frame 1 on my laptop, so when they “meet in the middle” I can stop the process and combine the frames?

I prefer not to mess with setting up a renderfarm script because it requires a network connection and extra overhead that would be unnecessary for a 2-computer setup.