Hi there,
I'm the creator/maintainer of SpiralLinux and GeckoLinux. Thanks for mentioning it! So, SpiralLinux is quite new, but I've been maintaining GeckoLinux since 2016. I started SpiralLinux because SUSE and openSUSE have announced some major changes that will eventually affect the GeckoLinux Static branch a few years from now, so SpiralLinux would fill the void in the event that openSUSE Leap ceases to exist or turns into a completely different sort of product.