It is interesting how dual 666Mhz and 1GB of ram is tiny compared to today's computers and still enormous compared to the original Amiga.

Any software to actually use the ARM cores besides the "minimal C library"?

Link to mfr's shop: https://shop.mntre.com/products/zz9000-for-amiga-preorder

Note this is from mntre; the creator of the Reform and in-progress Reform Next open laptops.