Comment by igouy

Back in the day, Morgan Stanley & JPMorgan & …, used ENVY/Developer — fine-grained Smalltalk config-map / sub-application / class / method configuration & version control in a central database.

"Mastering ENVY/Developer"

https://www.google.com/books/edition/Mastering_ENVY_Develope...

Some folk worked as "librarians" to promote code reuse across projects.