Unfortunately the excellent standard library is a major benefit of Go, and it uses the GC, so if you set GOGC=off you're left to write your own standard library

Unfortunately the excellent standard library is a major benefit of Go, and it uses the GC, so if you set GOGC=off you're left to write your own standard library. I would also like to see a stripped-down version of Go that disables most heap allocations, but I have no idea what it would look like.