Refactored the map to a struct because maps are for some reason not sortable, added sorting

src/main.go

@@ -4,8 +4,32 @@ import (
 	"fmt"
 	"os"
 	"flag"
+	"encoding/json"
+	"log"
+	"sort"
 )
 
+type CmdGroup struct {
+    Category string
+    Commands []CmdItem
+}
+
+type CmdList []CmdGroup
+
+type CmdItem struct {
+	CommandName        string `json:"command"`
+	CommandDescription string `json:"desc"`
+}
+
+func (list CmdList) Get(category string) []CmdItem {
+	for _, group := range list {
+		if group.Category == category {
+			return group.Commands
+		}
+	}
+	return nil
+}
+
 
 func main() {
 
@@ -15,22 +39,41 @@ func main() {
 
 	flag.Parse()
 
-	if len(os.Args) == 1 {
-		StartTui()
+	configFile := "/etc/cheatsh/commands.json"
+
+	var commands CmdList
+	var err error
+
+	if *configFlag != "" {
+		commands, err = loadCommands(*configFlag)
+		if err != nil {
+			log.Fatalf("Cannot load commands file: %v", err)
+		}
+		StartTui(commands)
+		return
+	} else if len(os.Args) == 1 {
+		commands, err = loadCommands(configFile)
+		if err != nil {
+			log.Fatalf("Cannot load commands file: %v", err)
+		}
+		StartTui(commands)
 		return
 	}
 
 	switch {
+
 		case *helpFlag:
 			printHelp()
-		case *configFlag != "":
-			StartTui(*configFlag)
+
 		case *newFlag:
 			HandleInput()
+
 		default:
 			printHelp()
 			os.Exit(1)
+
 	}
+
 }
 
 func printHelp() {
@@ -38,5 +81,32 @@ func printHelp() {
 	Options:
 	  --config <file>  Specify a config file
 	  --help           Show this help message
-	  --new 		   Add a new command to the config file`)
+	  --new            Add a new command to the config file`)
+}
+
+func loadCommands(path string) (CmdList, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, err
+	}
+
+	var raw map[string][]CmdItem
+	err = json.Unmarshal(data, &raw)
+	if err != nil {
+		return nil, err
+	}
+
+	cmdList := make(CmdList, 0, len(raw))
+	for category, commands := range raw {
+		cmdList = append(cmdList, CmdGroup{
+			Category: category,
+			Commands: commands,
+		})
+	}
+
+	sort.Slice(cmdList, func(i, j int) bool {
+		return cmdList[i].Category < cmdList[j].Category
+	})
+
+	return cmdList, nil
 }