This reminded me about the recent Google blog post where they made a server farm out of a bunch of old phones:

"Prior to deployment, smartphones must be processed to remove all but the motherboard, which contains the core compute functionality. Note that the motherboard is responsible for the largest fraction of embodied carbon (approximately 50% based on internal carbon footprinting assessments), so this effort targets the most impactful components."

And they accomplished the author's first goal to run real GNU/Linux on the phones.

https://research.google/blog/a-low-carbon-computing-platform...

The new AGI goalpost will be "able to deploy Linux on everyone's old phone with drivers for all the hardware ".