dump env vars
ZEF_TEST_DEGREE=1
ZEF_FETCH_DEGREE=1
install [Games::BubbleBreaker]
...
/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: Games::BubbleBreaker
Aborting due to test failure: SDL:ver<0.2.0> (use --force-test to override)
===> Searching for missing dependencies: SDL
===> Staging SDL:ver<0.2.0>
===> Staging [OK] for SDL:ver<0.2.0>
===> Staging Games::BubbleBreaker:ver<0.0.1>:auth<zef:raku-community-modules>
===> Staging [OK] for Games::BubbleBreaker:ver<0.0.1>:auth<zef:raku-community-modules>
===> Testing: SDL:ver<0.2.0>
[SDL] # SDL_Linked_Version v1.2.68
[SDL] error: XDG_RUNTIME_DIR is invalid or not set in the environment.
[SDL] # Failed test 'SDL_Linked_Version.patch'
[SDL] # at t/core.t line 22
[SDL] # You failed 1 test of 11
===> Testing [FAIL]: SDL:ver<0.2.0>