Go Bare Metal Thing That I Remember

I remember coming across something awhile back that amounts to a bare kernel to run Go software on. I can’t remember what it was called and was wondering if anyone here knows. Beyond that, if anyone has experience with it, I would be really interested in knowing how easy it is to use, what the advantages are, and if it’s worth the effort (for any level problem.)

https://gokrazy.org/ maybe?