Aaaaand congratulations, you're a winner! Behind curtain #1, you get a sparkling "Ignore Me" coupon! You can redeem the coupon for an "Ignore Me" billboard or an "Ignore Me" paint job for your house!
I have MX Linux (Debian) and was able to compile RespeQt 5.3. It is able to mount and open ATR images I download from Internet. But I cannot add files to any of those ATR images (even as sudo). Also when I create an image (16 MB HD image), it always creates them as write protected, and so far have not found a way to change that to writeable.
You could try Picobricks:
https://picobricks.com/how-to-use-picobricks/
Raspberry Pico (boots in a second) with integrated hardware for DIY projects (with kids in mind). It's fun!
Nothing to sell or trade for now, except stories . Might buy something, if my self-control wavers...
Will mark the calendar, as I would love to meet local Atarians and share experiences!
I also would love to help set it up.