Built Application Fails on MacOS Apple Silicon

[sth]

Built application fails.  Application is listed as universal???

Build folder deleted entirely and rebuilt today, (July 13, yet application listed as May 12!!).  Main VI is listed as edited today.

49184651 240 -r-xr-xr-x  1 sth  admin  119512 May 12 13:13 SCM4 Interlock Network Client*

Executable has universal type:

% file MacOS/SCM4\ Interlock\ Network\ Client

MacOS/SCM4 Interlock Network Client: Mach-O universal binary with 2 architectures: [x86_64:Mach-O 64-bit executable x86_64] [arm64:Mach-O 64-bit executable arm64]

MacOS/SCM4 Interlock Network Client (for architecture x86_64): Mach-O 64-bit executable x86_64

MacOS/SCM4 Interlock Network Client (for architecture arm64): Mach-O 64-bit executable arm64

Correct arm64 llb is installed in "Resources".

1432 -rw-r--r--  1 sth  admin  730568 Jul 13 10:56 Resources/AppContents_arm64.llb

However application fails to run.

Application runs fine on LV2023Q1 on MacOS x86?

What gives?

[sth]

Figured it out.

The code signing requirements are unclear (and incorrect).  I assumed that the binary needed to be resigned only when you messed with it by adding the second llb to make it universal.

No, for Apple Silicon every app needs to be explicitly code signed.  I assume this can be done with a simple post build script.  However the signing command listed previously does not seem to work.  The correct ad hoc code sign command is:

codesign --force --deep -s - <path to .app bundle>