Zercat is selling Chipflasher “board-edition-1”, which has earned the Free Software Foundation’s Respects Your Freedom (RYF) certification.
[…]Let’s create trustworthy hardware on our own, the free-design Propeller microchip empowers us to do so! When it comes to flash a coreboot or libreboot laptop, we are now using Zerocat’s free-design chipflasher as part of a quite clean & free toolchain. Commonly used flashers like the Beagle Bone Black or Raspberry Pi with chips of a proprietary design can now be avoided. The Zerocat Chipflasher is meant as a Do-It-Yourself project (DIY). It is easy to build and easy to use. For SMD packed chips, you may use a test clip.[…]