I read and tried this, but I had problems with the booting from the USB drive part. I tried twice with different USB drives and couldn't do it. Maybe it's the method of creating the bootable USB drive, or maybe it's because I used a USB adapter to read the USB drive.

I’ll try again later.

Fenix

Yeah, OpenBSD is supported in M1/M2. You're even one step forward in that direction already:

Apple systems need to have a UEFI environment installed before OpenBSD can be booted. This can be done by running the Asahi Linux installer. Afterwards you can boot the installer from a USB device connected to one of the ports on the machine.

tutorials

How to setup an OpenBSD virtual machine in Ubuntu with full-screen

nullama

Yeah, OpenBSD is supported in M1/M2. You're even one step forward in that direction already:

https://www.openbsd.org/arm64.html

> Apple systems need to have a UEFI environment installed before OpenBSD can be booted. This can be done by running the Asahi Linux installer. Afterwards you can boot the installer from a USB device connected to one of the ports on the machine. 