Ask HN: App for quickly opening all files and windows necessary for a project

I remember some time ago I saw someone posting an App for quickly opening all files and windows necessary for a given project. You could, for instance, set it up so, with a single click, you would open your text editor, some terminal windows running a given command, photoshop, some folders, etc.

Does any of you remember what program is that or use some custom solution for the same issue?

It's a huge pain to have to do that every time, specially if you switch between multiple projects