diff --git a/lua/custom/utils.lua b/lua/custom/utils.lua
index b94a5772..a07d704d 100644
--- a/lua/custom/utils.lua
+++ b/lua/custom/utils.lua
@@ -1,49 +1,53 @@
+local function is_executable(path)
+  -- Use `file` command to identify Mach-O or ELF binaries
+  local output = vim.fn.system { 'file', '-b', path }
+  return output:match 'Mach%-O' or output:match 'ELF'
+end
+
+local function collect_executables(dir)
+  local files = vim.fn.globpath(dir, '**', true, true)
+  local binaries = {}
+  for _, path in ipairs(files) do
+    if vim.fn.filereadable(path) == 1 and is_executable(path) then
+      table.insert(binaries, path)
+    end
+  end
+  return binaries
+end
+
+local function pick_executable(start_dir)
+  local co = coroutine.running()
+  if not co then
+    error 'pick_executable must be called from a coroutine'
+  end
+
+  local executables = collect_executables(start_dir)
+  if #executables == 0 then
+    vim.notify('No executables found in ' .. start_dir, vim.log.levels.WARN)
+    return
+  end
+
+  require('telescope.pickers')
+    .new({}, {
+      prompt_title = 'Select Executable',
+      finder = require('telescope.finders').new_table {
+        results = executables,
+      },
+      sorter = require('telescope.config').values.generic_sorter {},
+      attach_mappings = function(_, map)
+        map('i', '<CR>', function(prompt_bufnr)
+          local entry = require('telescope.actions.state').get_selected_entry()
+          require('telescope.actions').close(prompt_bufnr)
+          coroutine.resume(co, entry.value)
+        end)
+        return true
+      end,
+    })
+    :find()
+
+  return coroutine.yield()
+end
+
 return {
-  pick_executable = function(start_dir)
-    local function is_executable(path)
-      return vim.fn.filereadable(path) == 1 and vim.fn.executable(path) == 1
-    end
-
-    local function collect_executables(dir)
-      local files = vim.fn.globpath(dir, '**', true, true)
-      local binaries = {}
-      for _, path in ipairs(files) do
-        if is_executable(path) then
-          table.insert(binaries, path)
-        end
-      end
-      return binaries
-    end
-
-    local co = coroutine.running()
-    if not co then
-      error 'pick_executable must be called from a coroutine'
-    end
-
-    local executables = collect_executables(start_dir)
-    if #executables == 0 then
-      vim.notify('No executables found in ' .. start_dir, vim.log.levels.WARN)
-      return
-    end
-
-    require('telescope.pickers')
-      .new({}, {
-        prompt_title = 'Select Executable',
-        finder = require('telescope.finders').new_table {
-          results = executables,
-        },
-        sorter = require('telescope.config').values.generic_sorter {},
-        attach_mappings = function(_, map)
-          map('i', '<CR>', function(prompt_bufnr)
-            local entry = require('telescope.actions.state').get_selected_entry()
-            require('telescope.actions').close(prompt_bufnr)
-            coroutine.resume(co, entry.value)
-          end)
-          return true
-        end,
-      })
-      :find()
-
-    return coroutine.yield()
-  end,
+  pick_executable = pick_executable,
 }