Usage:
  zef [--fetch] [--build] [--test] [--depends] [--build-depends] [--test-depends] [--force] [--force-resolve] [--force-fetch] [--force-extract] [--force-build] [--force-test] [--force-install] [--timeout[=Int]] [--fetch-timeout[=Int]] [--extract-timeout[=Int]] [--build-timeout[=Int]] [--test-timeout[=Int]] [--install-timeout[=Int]] [--degree[=Int]] [--fetch-degree[=Int]] [--test-degree[=Int]] [--precompile-install] [--dry] [--upgrade] [--deps-only] [--serial] [--contained] [--update[=Any]] [--exclude[=Any]] [--to|--install-to[=Any]] install [<wants> ...] -- Fetch, extract, build, test and install distributions