Look at build [Build/Requirements]. Some of those programs you can build
with the help of contrib/prepare-deps scripts. Both master and slave
nodes most likely will require [CI/Daemontools]-like solution also, but
you should be able to build it by BASS build system itself and install
using it in [Build/skelenv].

Currently a heavy work in progress, especially related to CI-part of the
project (package building/management is pretty steady now).

    $ git clone git://git.cypherpunks.su/bass.git
    $ cd bass/contrib/prepare-deps
    $ rm steps/*-go1.* # if you want to skip Go bootstrapping and use system's
    $ mkdir state ; cd state
    $ ../dl
    $ ../do
    $ ./clean # to save diskspace
    $ PATH="$(realpath local/bin):$(realpath local/go/bin):$PATH"
    $ cd ../../../build
    $ echo SKELBINS=/somewhere/skelbins >rc
    $ echo BASS_REV=something >>rc # if you currently do not have git
    $ export BASS_RC=$(realpath rc)
    $ pkg/mk-arch
    $ redo pkg/FreeBSD-amd64-13.2-RELEASE/shells/zsh-5.9
    $ cd /tmp
    $ mkdir myskelenv
    $ cd myskelenv
    $ /path/to/bass/build/bin/mk-skelenv
    $ /path/to/bass/build/bin/pkg-inst shells/zsh-5.9
    $ . ./rc
    $ zsh

You can also use
anongit@master.git.stargrave.org:cypherpunks.su/bass.git
anongit@slave.git.stargrave.org:cypherpunks.su/bass.git
anongit@master.git.cypherpunks.su:cypherpunks.su/bass.git
anongit@slave.git.cypherpunks.su:cypherpunks.su/bass.git
git://git.stargrave.org/bass.git
git://y.git.stargrave.org/bass.git
git://y.git.cypherpunks.su/bass.git URLs instead.