How do you opt out for already created content in the past?

Copyright and license laws for you, not for me. This is the biggest theft ever.

This exist already for Fallout 1 & 2 and is great! Fallout 2 Community edition: https://github.com/alexbatalov/fallout2-ce

You perfectly can sell GPL code. And you can double-license yourself (provided that you are the copyright holder) as GPL and a privative license. A lot of companies do that, legally and correctly.

You can sell GPL code. Even if you aren’t the author. What you must do is share the code with those customers though.

my private desktop Linux installs still occasionally bork themselves for no good reason and require a reinstall

Edit: oh, you aren’t even OP. But I see I triggered you. And you have repeated the same you are saying in the parallel comment? Are you here reading all comments to this specific comment?

how to tell you are using Arch without saying it. Don’t use a rolling release on your own if you aren’t willing to pay the maintenance cost. edit: no, I’m not an ubuntu user.