base : Install fails on iMac, M1 chip, Ventura 13.4, after "validation of packages" step

[kaamui]

Trying to install MacPorts, it actually fails with the official package on the described configuration I tried it on.

Installing it via source code works perfectly.

No issue on another iMac, intel chip, Ventura 13.3.1.

I have no idea how to find logs for this installation failure, but I can look at it if you tell me where I can gather more information.

Tried with ​https://github.com/macports/macports-base/releases/download/v2.8.1/MacPorts-2.8.1-13-Ventura.pkg

I must precise that it's in the context of machines prepared for education purposes, that are heavily configured, so it might be an issue coming from this instead of an issue with MacPorts package.