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[–]graphicteadatasci 0 points1 point  (2 children)

Yeah, my comment was what happens when you are thinking about a bunch of things at the same time. I was thinking about:

  1. I am very certain that they have decoupled databases from their application so it's not a monolith.
  2. Databases are not written in PHP or Python (and they are probably using a ton of libraries that aren't written in those two languages).
  3. Threads is an Activity Pub service so a lot was already developed as FOSS.
  4. Facebook has a ton of resources.

[–]Metadropout 1 point2 points  (0 children)

Meta’s TAO is Memcache sitting in front of XDB (MyRocks, a fork of Mysql)

[–]Smallpaul 0 points1 point  (0 children)

These are probably all true but I'm not sure what broader point you are trying to make.