For your feedback: I installed on my Mac M1 following your recommendation, nothing more, and it worked our of the box. I have an Eagle generated Gerber file. Generated with a .cam file from JCLPCB. I loaded that file and asked for 6x4 layout, see screenshot. Excellent work!

I don't know what that green triangle represents, but it is not there in eagle, nor when I upload to JLCPCB
Mouse bites was added, which I don't need for this, V-Score only would be perfect. I could cheat a bit by entering '0' in number of bites, and I could reduce some of the spacing, but not all, see my setting below.

Would it be possible to to V-score only?
For your feedback: I installed on my Mac M1 following your recommendation, nothing more, and it worked our of the box. I have an Eagle generated Gerber file. Generated with a .cam file from JCLPCB. I loaded that file and asked for 6x4 layout, see screenshot. Excellent work!

Mouse bites was added, which I don't need for this, V-Score only would be perfect. I could cheat a bit by entering '0' in number of bites, and I could reduce some of the spacing, but not all, see my setting below.

Would it be possible to to V-score only?