some baseline packages

dns utils

    slackpkg install \
            bind \
            jemalloc \
            libuv \
            libxml2 \
            lmdb

git

    slackpkg install git
    # brotli cyrus-sasl

man

    slackpkg install man-db man-pages libseccomp groff

nmap

    slackpkg install nmap libnl

rsync

    slackpkg install rsync lz4 xxHash

    ldd /usr/bin/rsync | grep found

screen

    slackpkg install screen ...

sbopkg

(see rsync above)

slackpkg install \
    rsync \
    lz4 \
    cyrus-sasl \
    curl \
    zstd \
    nghttp2 \
    brotli

    ldd /usr/libexec/gnupg/gpgkeys_curl | grep found

also see packages-sbo

tcpdump

    slackpkg install tcpdump libcap-ng libpcap libnl3

nftables

    slackpkg install nftables jansson libnftnl iptables libpcap dbus-1
    nft list ruleset