* Where to buy
Some untested resources to buy laptops or desktops:

- https://starlabs.systems
- https://www.tuxedocomputers.com

FSF's [[https://h-node.org/][h-node]] rates hardware according to its compatibility with free
software.
* LDLC PC Zenifier-SSD
** assembly woes
Lots of impedance mismatches between "documentation" and actual
hardware:
- CPU cooler (fan) has spring screws; diagrams show retention clips.
  Had to dig into the [[https://www.amd.com/en/support/kb/faq/cpu-7][AMD knowledge base]] to find that some
  motherboards come with "speculative" clips, which must be unscrewed
  and removed in order to install the spring-screw cooler.
- Diagrams say to add thermal paste, but the fan already comes with a
  pre-applied layer.
- Documentation shows RAM clips for both ends of the sticks; the
  motherboard seems to only have clips for one end.
- =SYS_FAN1= header has 4 pins; front fan plug has 3 holes.  The
  Internet[[https://old.reddit.com/r/buildapc/comments/4139k8/3_pin_sys_fan2_vs_4_pin_sys_fan1/][[1]​]][[https://forums.tomshardware.com/threads/sys_fan1-and-sys_fan2.3195778/][[2]​]] says it's fine.
- Motherboard has [[https://www.msi.com/Motherboard/B550M-A-PRO/Specification]["8 mounting holes"]] but covers only 6 of the case's
  standoffs; none of the diagrams in the case's manual match the
  format of the motherboard.

For novices, some steps range from "not very reassuring" to "downright
hostile":
- The amount of force needed to connect the CPU fan's first two
  diagonal screws is terrifying.
- The fan's case is asymmetric: one side has a small bump featuring
  the maker's brand.  If one does not attention when mounting the fan,
  there is a 50% chance that this bump will get in the way of a RAM
  stick.
- No instruction on [[https://www.youtube.com/watch?v=XAWNzd-gc3Q&t=74s][how to force that I/O shield in]].
- No instruction on how to snap the motherboard into the I/O shield.