Build for TP-Link Archer C1200-AC1200

I wasn't able to build anything with your script (maybe something different in toolchain), but I was able to build executable that works! (And yes, I wasn't able to create proper Makefile, so building manually)
Thank you!
out

Next point is to compile something like htop.
And figure out hot to properly rebuild rootfs squashfs or connect overlayfs.