uname -a
Darwin jbook.chimera-bass.ts.net 23.0.0 Darwin Kernel Version 23.0.0: Fri Sep 15 14\
:42:42 PDT 2023; root:xnu-10002.1.13~1/RELEASE_X86_64 x86_64

jaten@Js-MacBook-Pro ~/trash/root $ ln -s /etc symlink
ln -s /etc symlink
jaten@Js-MacBook-Pro ~/trash/root $ go run root.go
go run root.go
read file, got: '##
# User Database
# 
# Note that this file is consulted directly only when the system is running
# in single-user mode.  At other times this information is provided by
# Open Directory.
#
# See the opendirectoryd(8) man page for additional information about
# Open Directory.
##
nobody:*:-2:-2:Unprivileged User:/var/empty:/usr/bin/false
root:*:0:0:System Administrator:/var/root:/bin/sh
... the rest of my /etc/passwd file elided for security reasons...
'
jaten@Js-MacBook-Pro ~/trash/root $ go version
go version
go version go1.24.0 darwin/amd64
jaten@Js-MacBook-Pro ~/trash/root $ cat root.go
cat root.go
package main

import (
	"fmt"
	"os"
)

func main() {
	root, err := os.OpenRoot("symlink")
	if err != nil {
		panic(err)
	}
	fd, err := root.Open("passwd")
	if err != nil {
		panic(err)
	}
	buf := make([]byte, 1<<20)
	n, err := fd.Read(buf)
	if err != nil {
		panic(err)
	}
	fmt.Printf("read file, got: '%v'\n", string(buf[:n]))
}
jaten@Js-MacBook-Pro ~/trash/root $

jaten@Js-MacBook-Pro ~/trash/root $ go env
go env
AR='ar'
CC='clang'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='clang++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/Users/jaten/Library/Caches/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/Users/jaten/Library/Application Support/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -arch x86_64 -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -ffile-prefix-map=/var/folders/b6/q5ms8t4x5cjcpcpyjrb1h91c0000gn/T/go-build4060061549=/tmp/go-build -gno-record-gcc-switches -fno-common'
GOHOSTARCH='amd64'
GOHOSTOS='darwin'
GOINSECURE=''
GOMOD=''
GOMODCACHE='/Users/jaten/go/pkg/mod'
GONOPROXY='github.com/glycerine/*'
GONOSUMDB='github.com/glycerine/*'
GOOS='darwin'
GOPATH='/Users/jaten/go'
GOPRIVATE='github.com/glycerine/*'
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='off'
GOTELEMETRYDIR='/Users/jaten/Library/Application Support/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/darwin_amd64'
GOVCS=''
GOVERSION='go1.24.0'
GOWORK=''
PKG_CONFIG='pkg-config'