Kevin Sawicki

I tried to use `signcode` (instead of osslsigncode) originally from that mdn article but it does not appear to support `sha256` signatures which Windows 10 requires I believe.

> Do you mean the example just shows sha1, or the signcode tool actaully doesn't support sha256? `signcode` only supports sha1 or md5 I believe. ``` Usage: signcode [options] filename...

Atom switched to dual signing via native `signtool` awhile ago with `sha1` and `sha256` signatures and I couldn't get that working with `signcode`.

> We still want to use your signcode package when we're on non-Windows platforms, right? Yup, currently it only works on Mac, but Linux support should be straightforward, just haven't...