Thank you!
Ah, yes- I agree, you need to thoroughly manually test your code on all systems. However, when your major release is done and you shift into maintenance mode, and especially long-term maintenance, I found that importance shifts dramatically to automatic regression tests. That is where it really pays off to immediately get all test results from all target platforms, and to have your toolchains neatly tucked away in a dedicated little system no one ever messes with- no OS upgrades and build system regressions to sort out. And nothing to install except the binary for people who want to help you with testing.
