You should run a more modern LaTeX engine, such as XeLaTeX or LuaLaTeX. I can’t type diacritical characters (ąęłóż) without going to the past and figuring out the necessary encoding things.
You can already use these with Overleaf if you need to :)
We try to detect which compile engine to use, and you can always specify it manually in the editor settings. Just click the gear icon in the top right.
We try to detect which compile engine to use, and you can always specify it manually in the editor settings. Just click the gear icon in the top right.