Sapling
Named by 3 kept items in this workspace.
Search every workspace for Sapling. It matches the name as written, so it can find other things that share it.
The items that name it 3
Meta's source control ecosystem; also the name of the VCS client (sl, originally forked from hg)
Meta's source control system, credited by Anthropic only for 'hard-won lessons'
Meta's source control system for huge monorepos; prior art for Scion
All technologies in this workspace.