Raspberry Pi 3 Bullseye arm64 Noetic install

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Hello,

Trying to get off the ground with a Noetic first time install on Raspberry Pi 3 Model B running RPi OS Bullseye 64-bit. Here are the different attempts that manifested roadblocks for which my limited knowledge had no workarounds:

• Couldn't install a Debian package because the documented URL was pointing to Ubuntu and my hunt-n-peck search revealed a completely different URL which I dutifully used but ran afoul of the UBUNTU_CODENAME because my replacement string Bullseye didn't work
• Many of prerequisite Python packages couldn't be installed
• In the Build from source script, I don't know the recommended vcs that I should use

This particular platform is intended for learning purposes only (crash-and-burn in due course). I really don't need Docker but is the Docker route my only option for the Raspberry Pi 3 Model B arm64 platform? Thanks.

Kind regards.