gui: TestExplorerWithoutPath is built where explorer is: windows and not nogui — it had no build tag, so go test -tags nogui ./internal/gui, which the project runs, failed to compile on Windows: the test was in while folder_windows.go, which has explorer and fileExists, was left out by !nogui. (#272)

internal/gui/folder_windows_test.go

@@ -1,3 +1,5 @@
+//go:build windows && !nogui
+
 package gui
 
 import (