steam/steam-1.0.0.78-2-x86_64.pkg.tar.zst build reproducible in our test framework:
cff4f11415cd257eaf9246d41548810c7c43fad9057d02e518fa45da7af9bafb steam-1.0.0.78-2-x86_64.pkg.tar.zst
f2bbc83e5f1882accb227b1d04e39d20e1f9d9dc059551403b61181a0f008a45 steam-1.0.0.78-2-x86_64.pkg.tar.zst-b1.BUILDINFO.txt
f2bbc83e5f1882accb227b1d04e39d20e1f9d9dc059551403b61181a0f008a45 steam-1.0.0.78-2-x86_64.pkg.tar.zst-b2.BUILDINFO.txt