[andrewstuart]

If you can make do with a microcontroller then the esp32 has excellent software.

Alternatively maybe buy ex business/government mini machines for less than $35 off eBay. Intel CPUs have better software than rpi.

https://www.ebay.com/itm/224882648354?hash=item345c0ce522:g:...

[explorigin]

Did you read the description? That $35 computer you linked has "no memory, no cpu, no hard drive".

[codingpanic]

As far as buying cheap government computers goes... price is only one factor here. Formfactor and power use are huge wins with ARM SBCs.