• Rakudo
• RAKUDO_DEFAULT_READ_ELEMS
• RAKUDO_DISABLE_MULTILINE
• RAKUDO_EXCEPTIONS_HANDLER
• RAKUDO_HIST
• RAKUDO_LINE_EDITOR
• RAKUDO_LOG_PRECOMP
• MoarVM
• MVM_SPESH_DISABLE
• MVM_SPESH_BLOCKING
• MVM_SPESH_NODELAY
• MVM_SPESH_INLINE_DISABLE
• MVM_SPESH_OSR_DISABLE
• MVM_JIT_DISABLE
• MVM_SPESH_LOG
• MVM_JIT_LOG
• MVM_JIT_BYTECODE_DIR
• MVM_CROSS_THREAD_WRITE_LOG
• MVM_COVERAGE_LOG
• MVM_COVERAGE_CONTROL