Comment 3 for bug 1813634

yep, SNAPCRAFT_ARCH_TRIPLET works OK in destructive mode. When running using by multipass snapcraft becomes different beast, a bit tricky to predict. In general snapcraft is not giving much help to handle cross compiling.
I understand that it would be naive to expect from snapcracft to solve cross compiling for all the various build systems, but giving enough information about host and target is minimum info it can provide.... And I believe this should not be hard to pass, especially since we have already have env variable there.
A bit worrying this is not getting any attention... not even comment from snapcraft team