Ranst aside, for now you can do "ad-hoc code signing" for free as we do with Pd starting in 0.51 for macOS 10.15+:

https://github.com/pure-data/pure-data/blob/master/mac/osx-app.sh#L359

Reference: https://apple.stackexchange.com/questions/288291/what-are-the-restrictions-of-ad-hoc-code-signing

This may change in the future, but works for now. You can also look up a pd-list thread about 6 months ago where Roman was figuring out how to sign his re-package of Pd for netpd distribution.

This won't remove the "unidentified developer" warning but it should run, although I'm not sure how that mechanism transpires within the context of running things within Max. I would suggest having a second system to test this out other than the build system aka build, then copy to the other system and try running it.

On Sep 18, 2020, at 6:41 PM, pd-list-request@lists.iem.at wrote:

Date: Fri, 18 Sep 2020 08:54:42 -0700
From: Brad Garton <garton@columbia.edu>
To: João Pais <jmmmpais@gmail.com>
Cc: "pd-list@lists.iem.at" <pd-list@mail.iem.at>
Subject: Re: [PD] Advice on distributing pd-based software for apple
Message-ID:
<CAJevikOrk_ze7=c5yC0GDWJqPtoRK+W8wXNg02QioWr_av2QaA@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

You can use a variant of these instructions:

http://sites.music.columbia.edu/brad/osx-windows-new-RTcmixes/annoying.html

to get around the STUPID ANNOYING STUPID OBNXIOUS Apple gatekeeper
code-signing thing.

brad

--------
Dan Wilcox
@danomatika
danomatika.com
robotcowboy.com