Simple main.go to process a Key/Value bookmarks as .command for be used in MacOS.

main.go

package main

import (
	"encoding/json"
	"os"
	"path/filepath"
)

const (
	output   = "shortcuts"
	filePath = "aws-services.json"
)

func main() {
	file, err := os.Open(filePath)
	if err != nil {
		panic(err)
	}
	defer file.Close()

	var data map[string]string
	if err := json.NewDecoder(file).Decode(&data); err != nil {
		panic(err)
	}

	for key := range data {
		filePath := filepath.Join(output, key+".command")
		f, err := os.Create(filePath)
		if err != nil {
			panic(err)
		}
		if _, err := f.WriteString(data[key]); err != nil {
			panic(err)
		}
		f.Close()
		if err := os.Chmod(filePath, 0755); err != nil {
			panic(err)
		}
	}
}