Invalid certificate in shiftkey package feed?

[scepticore]

I solved it by using the @mwt package feed but still wanted you to know, that currently the shiftkey package feed is not working (for me).

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Operating System/Distribution

Ubuntu 24.10

Installer

Via @shiftkey package feed according to the readme.md
I tried to install by using the following:

wget -qO - https://apt.packages.shiftkey.dev/gpg.key | gpg --dearmor | sudo tee /usr/share/keyrings/shiftkey-packages.gpg > /dev/null
sudo sh -c 'echo "deb [arch=amd64 signed-by=/usr/share/keyrings/shiftkey-packages.gpg] https://apt.packages.shiftkey.dev/ubuntu/ any main" > /etc/apt/sources.list.d/shiftkey-packages.list'

What happened?

When trying to install I got the error / warning: "could not handshake error in the certificate verification"
When trying to open https://apt.packages.shiftkey.dev/gpg.key, there is a certification warning after skipping the warning, there is a "Page not found" message.

[shiftkey]

Duplicate of #1062