Testing a strictly-no-libunwind scenario could avoid problems with distros that do not have libunwind available. There are other aspects of portability but this is probably the easiest one to test.
1539 should add the "no libunwind" scenario. Generating tarball on one RID and building it on another is another scenario that should be tested here. Also, this should test the "banana linux" scenario. #297
Testing a strictly-no-libunwind scenario could avoid problems with distros that do not have libunwind available. There are other aspects of portability but this is probably the easiest one to test.