You can actually make go spit out .o files and link it with your favorite linker. Bazel does this, if you ask it to. I played a lot with experimental linkers

You can actually make go spit out .o files and link it with your favorite linker. Bazel does this, if you ask it to. I played a lot with experimental linkers when I was trying to get build time down for our (well, $JOB-1's) large Go binary, but they didn't help that much. The toolchain that comes with Go is quite good.