What is the use case for explicitly staying below a Debian revision? This may break quite a few assumptions and no Debian derivative (that I know of) does this.

The problem tracked in this issue is that you can install non-free packages or add non-free repos - including skype and others.
Which packages can most easily be installed due to the default configuration of the tool is a subset of this general issue.

The problem is not that you can install non-free packages or add non-free repos. So can you in apt. The problem is that snap is using Snapcraft repository by default. Just try snap find skype, snap find clion or snap find spotify.

It worked for me! Thank you @jeremiah.foster !

This points to file corruption I think. It appears that people have had success in deleting files in

/var/lib/apt/lists/

and re-running apt.

The following command fixes it - echo 'apt::sandbox::seccomp "false";' > /etc/apt/apt.conf.d/50seccomp

Thanks!

seems I was mistaken: Matthias explained today that "whatever works, as long as the string "pureos" with a version number suffix appears in there".

Can one install PureOS wihout a monitor and mouse? I.e. using only a keyboard.

Fascinating. I believe this is a bug in GNOME. I'll see if there is a suitable place for it upstream.

Is this a duplicate for #T935?

There are parts of the EFI stack that are proprietary, this is why we do not include them in our installer. Other projects may include them in their "non-free" repos but because we're a FSF compliant Free Software distro we don't include non-free repositories. We continue to investigate if there is a way to support GPT.

Had the same issue, I fixed it by enabling Compatibility Support Module (CSM) in BIOS. Hope this can help others as well.

Run cpu-x. Get this message;