dump env vars
ZEF_TEST_DEGREE=5
ZEF_FETCH_DEGREE=1
install [HTML::MyHTML]
...
/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: HTML::MyHTML
===SORRY!=== Error while compiling /root/.sparky/.cache/rsebhjpwqknyotzimucv.130/.sparrowdo/site#sources/26E9BA82220ED18FDDE2E6240FC2428FBAE507A4 (HTML::MyHTML)
===SORRY!=== Error while compiling /root/.sparky/.cache/rsebhjpwqknyotzimucv.130/.sparrowdo/site#sources/688543FF6ACE3CAEF429E87B46FD60E15E131DF2 (HTML::MyHTML::Raw)
Class HTML::MyHTML::Raw::Tag has no attributes, which is illegal with the CStruct representation.
at /root/.sparky/.cache/rsebhjpwqknyotzimucv.130/.sparrowdo/site#sources/688543FF6ACE3CAEF429E87B46FD60E15E131DF2 (HTML::MyHTML::Raw):54

at /root/.sparky/.cache/rsebhjpwqknyotzimucv.130/.sparrowdo/site#sources/26E9BA82220ED18FDDE2E6240FC2428FBAE507A4 (HTML::MyHTML):3

===> Staging HTML::MyHTML:ver<0.3.0>