ongoing is where I have the projects that I'm currently (or I've reasonably recently been) working on.
archived is where I move my projects after I abandon them. I try to be honest with myself and move projects from ongoing to here when I haven't worked on them in a few weeks and it's unlikely that I will take them up in the next few days. Also, sometimes I move projects from archived to ongoing if I decide to resurrect them.
tutorials is where I store the code I write following tutorials. I have a special consideration for those because usually when I'm learning something new and I follow a tutorial, I create a project with all the examples and stuff, that is handy to review when I'm working on a project with that stuff.
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