Cannot Find Package for Ubuntu 20.04.5 LTS

[KerickHowlett]

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I attempted to install this the yubikey-agent package with sudo apt install yubikey-agent onto my WSL2 image of Ubuntu 20.04 distro, but I get a "package not found" in response—even after running sudo apt update.

Is there a specific registry I need to add first?

Or is it just not available for my version of Ubuntu? Even though it's the latest version available for WSL2, I know it's not the latest Ubuntu version out there.

[KerickHowlett]

Looking up this package in the registry, I see its only available for Ubuntu 22.04 (Jammy).

Is there a way to install this on Ubuntu 20.04 LTS (Focal)?

It's the latest available version for WSL2 (Windows Subsystem Linux 2).