commit d626d2f627aa71605039b1975eb74abbd32458bf
Author: Nhân <hi@imnhan.com>
Date:   Thu Jun 22 17:47:25 2023 +0700

    make tcl path configurable

diff --git a/main.go b/main.go
index 8b9992f..e4f9420 100644
--- a/main.go
+++ b/main.go
@@ -4,6 +4,7 @@
 	"bufio"
 	_ "embed"
 	"encoding/json"
+	"flag"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -11,7 +12,6 @@
 	"net/http"
 	"os"
 	"os/exec"
-	"runtime"
 	"strconv"
 	"strings"
 	"time"
@@ -43,15 +43,13 @@ func main() {
 		}
 	}()
 
-	startGUI()
-}
+	tclPathPtr := flag.String("tcl", DefaultTclPath, "Path to tclsh executable")
+	flag.Parse()
 
-func startGUI() {
-	tclPath := "tclsh"
-	if runtime.GOOS == "windows" {
-		tclPath = "./tclkit.exe"
-	}
+	startGUI(*tclPathPtr)
+}
 
+func startGUI(tclPath string) {
 	cmd := exec.Command(tclPath, "-encoding", "utf-8")
 	stdout, err := cmd.StdoutPipe()
 	if err != nil {
diff --git a/hacks_linux.go b/main_linux.go
similarity index 72%
rename from hacks_linux.go
rename to main_linux.go
index e3d4782..cbdd98f 100644
--- a/hacks_linux.go
+++ b/main_linux.go
@@ -2,4 +2,6 @@
 
 package main
 
+const DefaultTclPath = "tclsh"
+
 func forceFocus(handle string) error { return nil }
diff --git a/hacks_windows.go b/main_windows.go
similarity index 90%
rename from hacks_windows.go
rename to main_windows.go
index 0adaf6f..b6154bf 100644
--- a/hacks_windows.go
+++ b/main_windows.go
@@ -9,6 +9,8 @@
 	"github.com/lxn/win"
 )
 
+const DefaultTclPath = "./tclkit.exe"
+
 func forceFocus(handle string) error {
 	hex := handle[2:] // trim the "0x" prefix
 	uintHandle, err := strconv.ParseUint(hex, 16, 64)