They are saying you need to know the distro package names on the command line. I don't have a Rπ handy to check the packages for you. Use sudo apt-get install gcc dtc git bash linux-headers make git
then see what fails. Whatever fails is likely just due to the package name being different in aptitude. The way you find the package name in Debian or any distro is a combination of searching different places and/or looking up the host repo on GitHub/GitLab/etc. Often they will list the names of the package in different distros.
Note that, anything Debian based may be old and outdated in Aptitude packages. You can still use it just the same. It is old by design. That is what Stable distro means. If you find documentation online or you need some newer feature, you must install stuff manually. It is probably a non issue for you at this stage, but just be aware. If you see info about a ppa this is how you add the more recent packages to aptitude so that it overrides the older stable packages.