There is no way a computer can be made at such a low cost.
Besides, who is going to tool up to make an obsolete processor and set of support chips?

The lowest possible computer is a donated and re-manufactured by volunteers and students using donated funds for expenses.
Perhaps then the can give away the computers for at least $50.

There are many old computers, monitors, disk drives, etc. out there that are no longer used by individuals and firms because they are obsolete for advanced and power users but could work fine in some poor neighborhood or country. Re-cycling by is the green way to go.

I threw mine out.

The last “upgrade” to the II line was the IIgs, which was a new and (even then) slow 16-bit chip that emulated the old 8-bit architecture, and did a poor job of it.

No further upgrades to it is one major reason the PC-based architecture took over and became the most common hardware in use today. (Another reason involved IBM not prosecuting makers of clone machines.)

More power to them, but the entire venture is not going to accomplish anything remotely intended. The “Computers for everyone” projects have been doomed from the start.

What kind of CPU are we talking about here? An 8-bit one like the 6502 has nowhere near the computing power needed to run powerful enough applications, no matter what kind of programming wizardry they use. I was an Apple II programmer and couldn’t make the kind of interfaces modern computing needs (which is why I had to make the switch in the 1990s!).