diff --git a/scripts/play.fun b/scripts/play.fun
index 54eb5f9..ee2e7d4 100755
--- a/scripts/play.fun
+++ b/scripts/play.fun
@@ -22,33 +22,33 @@
 // We try to use existing environment or default to ./lib
 lib_dir = env("FUN_LIB_DIR")
 if (len(to_string(lib_dir)) == 0)
-    lib_dir = "./lib"
+  lib_dir = "./lib"
 
 // Discovery logic for the interpreter
 fun find_interpreter()
-    bin = env("FUN_BIN")
-    if (len(to_string(bin)) > 0)
-        return bin
+  bin = env("FUN_BIN")
+  if (len(to_string(bin)) > 0)
+    return bin
 
-    // Check common build locations
-    // We use 'system' with 'test -f' as we don't have a direct 'is_file' yet
-    if (system("test -f ./build/fun") == 0)
-        return "./build/fun"
-    if (system("test -f ./build_debug/fun") == 0)
-        return "./build_debug/fun"
-    if (system("test -f ./build_release/fun") == 0)
-        return "./build_release/fun"
+  // Check common build locations
+  // We use 'system' with 'test -f' as we don't have a direct 'is_file' yet
+  if (system("test -f ./build/fun") == 0)
+    return "./build/fun"
+  if (system("test -f ./build_debug/fun") == 0)
+    return "./build_debug/fun"
+  if (system("test -f ./build_release/fun") == 0)
+    return "./build_release/fun"
 
-    // Check PATH
-    if (system("command -v fun >/dev/null 2>&1") == 0)
-        return "fun"
+  // Check PATH
+  if (system("command -v fun >/dev/null 2>&1") == 0)
+    return "fun"
 
-    return ""
+  return ""
 
 interpreter = find_interpreter()
 if (len(interpreter) == 0)
-    print("Error: fun interpreter not found. Please build it or set FUN_BIN.")
-    exit(1)
+  print("Error: fun interpreter not found. Please build it or set FUN_BIN.")
+  exit(1)
 
 print("Using interpreter: " + interpreter)
 print("Searching for examples in ./examples...")
@@ -57,34 +57,34 @@ print("Searching for examples in ./examples...")
 // Since we don't have a robust recursive os_list_dir yet, 
 // and the original used 'find', we'll use 'find' via system to get the list.
 fun get_examples()
-    // We use 'find' to get all .fun files and sort them.
-    // We redirect to a temporary file as we don't have a 'proc_capture' that returns an array easily
-    // Actually, os_list_dir uses 'ls -1'. We can use a similar approach or just call find.
+  // We use 'find' to get all .fun files and sort them.
+  // We redirect to a temporary file as we don't have a 'proc_capture' that returns an array easily
+  // Actually, os_list_dir uses 'ls -1'. We can use a similar approach or just call find.
 
-    cmd = "find examples -name \"*.fun\" | sort > ./tmp/examples_list.txt"
-    system(cmd)
+  cmd = "find examples -name \"*.fun\" | sort > ./tmp/examples_list.txt"
+  system(cmd)
 
-    list_str = read_file("./tmp/examples_list.txt")
-    // We don't have a built-in 'split' that handles newlines easily in all versions? 
-    // Wait, lib/strings.fun might have it.
+  list_str = read_file("./tmp/examples_list.txt")
+  // We don't have a built-in 'split' that handles newlines easily in all versions? 
+  // Wait, lib/strings.fun might have it.
 
-    lines = str_split(list_str, "\n")
+  lines = str_split(list_str, "\n")
 
-    // Filter out empty lines
-    examples = []
-    i = 0
-    n = len(lines)
-    while (i < n)
-        line = str_trim(lines[i])
-        if (len(line) > 0)
-            push(examples, line)
-        i = i + 1
-    return examples
+  // Filter out empty lines
+  examples = []
+  i = 0
+  n = len(lines)
+  while (i < n)
+    line = str_trim(lines[i])
+    if (len(line) > 0)
+      push(examples, line)
+    i = i + 1
+  return examples
 
 examples = get_examples()
 if (len(examples) == 0)
-    print("No examples found in ./examples")
-    exit(0)
+  print("No examples found in ./examples")
+  exit(0)
 
 failed_examples = []
 console = Console()
@@ -92,38 +92,38 @@ console = Console()
 i = 0
 n = len(examples)
 while (i < n)
-    example = examples[i]
-    print("--------------------------------------------------------------------------------")
-    print("Example: " + example)
+  example = examples[i]
+  print("--------------------------------------------------------------------------------")
+  print("Example: " + example)
 
-    // ask_yes_no returns 1 for yes, 0 for no
-    print("Do you want to run this example? [y/N]")
-    ans = str_to_lower(str_trim(input("")))
-    if (ans == "y" || ans == "yes")
-        print("Running: " + interpreter + " " + example)
+  // ask_yes_no returns 1 for yes, 0 for no
+  print("Do you want to run this example? [y/N]")
+  ans = str_to_lower(str_trim(input("")))
+  if (ans == "y" || ans == "yes")
+    print("Running: " + interpreter + " " + example)
 
-        // Prepare command with environment variable
-        // FUN_LIB_DIR must be passed to the child process
-        cmd = "FUN_LIB_DIR=\"" + lib_dir + "\" " + interpreter + " " + example
-        exit_code = system(cmd)
+    // Prepare command with environment variable
+    // FUN_LIB_DIR must be passed to the child process
+    cmd = "FUN_LIB_DIR=\"" + lib_dir + "\" " + interpreter + " " + example
+    exit_code = system(cmd)
 
-        print("Exit code: " + to_string(exit_code))
-        if (exit_code != 0)
-            push(failed_examples, example + " (exit code: " + to_string(exit_code) + ")")
-    else
-        print("Skipping.")
+    print("Exit code: " + to_string(exit_code))
+    if (exit_code != 0)
+      push(failed_examples, example + " (exit code: " + to_string(exit_code) + ")")
+  else
+    print("Skipping.")
 
-    i = i + 1
+  i = i + 1
 
 print("--------------------------------------------------------------------------------")
 print("Done.")
 
 if (len(failed_examples) > 0)
-    print("The following examples failed:")
-    i = 0
-    while (i < len(failed_examples))
-        print("  - " + failed_examples[i])
-        i = i + 1
-    exit(1)
+  print("The following examples failed:")
+  i = 0
+  while (i < len(failed_examples))
+    print("  - " + failed_examples[i])
+    i = i + 1
+  exit(1)
 
 exit(0)