dump env vars
ZEF_TEST_DEGREE=1
ZEF_FETCH_DEGREE=1
install [HTML::Canvas::To::PDF]
...
/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::Canvas::To::PDF
===SORRY!=== Error while compiling /root/.sparky/.cache/fchlorikjauwtpnedqxy.126/.sparrowdo/site#sources/CE4E0F7BC64016924FFC819E7FD2D8FC1B8D91AE (HTML::Canvas)
===SORRY!=== Error while compiling /root/.sparky/.cache/fchlorikjauwtpnedqxy.126/.sparrowdo/site#sources/5CB82249BD8B64FBA6F23378D8FA62333EF6556C (HTML::Canvas::Gradient)
Error while importing from 'CSS::Properties': no such tag 'to-ast'
at /root/.sparky/.cache/fchlorikjauwtpnedqxy.126/.sparrowdo/site#sources/5CB82249BD8B64FBA6F23378D8FA62333EF6556C (HTML::Canvas::Gradient):14
------>     use CSS::Properties :&to-ast<HERE>;

at /root/.sparky/.cache/fchlorikjauwtpnedqxy.126/.sparrowdo/site#sources/CE4E0F7BC64016924FFC819E7FD2D8FC1B8D91AE (HTML::Canvas):12

===> Searching for missing dependencies: HTML::Canvas:ver<0.1.3+>, PDF::Font::Loader::CSS, PDF::Font::Loader::HarfBuzz, Text::FriBidi:ver<0.0.4+>
===> Searching for missing dependencies: Cairo, HarfBuzz::Font::FreeType:ver<0.0.5+>, HarfBuzz::Shaper::Cairo:ver<0.0.3+>, HarfBuzz:ver<0.1.3+>, HarfBuzz::Font::FreeType
===> Staging Cairo:ver<0.3.6>
===> Staging [OK] for Cairo:ver<0.3.6>
===> Staging HarfBuzz:ver<0.1.7>:auth<zef:dwarring>
===> Staging [OK] for HarfBuzz:ver<0.1.7>:auth<zef:dwarring>
===> Staging HarfBuzz::Font::FreeType:ver<0.0.10>:auth<zef:dwarring>
===> Staging [OK] for HarfBuzz::Font::FreeType:ver<0.0.10>:auth<zef:dwarring>
===> Staging HarfBuzz::Shaper::Cairo:ver<0.0.7>:auth<zef:dwarring>
===> Staging [OK] for HarfBuzz::Shaper::Cairo:ver<0.0.7>:auth<zef:dwarring>
===> Staging Text::FriBidi:ver<0.0.7>:auth<zef:dwarring>
===> Staging [OK] for Text::FriBidi:ver<0.0.7>:auth<zef:dwarring>
===> Staging HTML::Canvas:ver<0.1.3>:auth<zef:dwarring>