Clojure tools.deps and development environments (dev, test, prod)

From slack
https://clojurians.slack.com/archives/C6QH853H8/p1592263545342600

We have a monorepo at work and we specifically use CLJ_CONFIG to set the "user" deps.edn to come from a specific directory in the monorepo so that we have a single, central place for all repo-wide aliases anyone needs. This also helps maintain repeatability because each developer's "user" deps.edn is excluded and we can control exactly what each alias does.

if subprojects have paths that are loaded based on alias, do you configure this all in the central deps.edn instead?e.g {:extra-paths ["subproject1/test" "subproject2/test"]}

It depends on whether the alias (and the optional subproject) are going to be needed for "all" other subprojects or just specific one(s). We scope things appropriately.

All our subprojects are at the same level so ../subproject/path always works.

No repository files, tests, or entry points are named. Start by reading the linked Slack discussion and reviewing how this project documents tools.deps, CLJ_CONFIG, and central deps.edn aliases. This needs a defined documentation scope and acceptance criteria before completion can be assessed.