dump env vars
ZEF_TEST_DEGREE=5
ZEF_FETCH_DEGREE=1
install [HTTP::Server]
...
/tmp/whateverable/rakudo-moar/fe0e20c28859ea709eefad19af452c9d35dff20d/share/perl6/site/bin/zef
1.0.0
/tmp/whateverable/rakudo-moar/fe0e20c28859ea709eefad19af452c9d35dff20d/bin//raku
Welcome to Rakudo™ v2025.11.
Implementing the Raku® Programming Language v6.d.
Built on MoarVM version 2025.11.
===> Searching for: HTTP::Server
No meta file? Path: /tmp/.zef.1764103305.8186/HTTP%3A%3AServer%3Aver%3C0.1.0%3E%3Aauth%3Cgithub%3Atony-o%3E.tar.gz
===> Extraction: Failed to find a META6.json file for HTTP::Server:ver<0.1.0>:auth<github:tony-o> -- failure is likely