purgepkgs=(
	# unnecessary modules and firmware unless you use certain usb wifi sticks:
	rtl8723bu-modules-4.19.94-ti-r42
	rtl8821cu-modules-4.19.94-ti-r42
	firmware-brcm80211
	firmware-realtek

	# definitely not useful on am335x:
	bb-bbai-firmware

	# dubious out-of-tree modules you probably don't care about:
	seeed-modules-4.19.94-ti-r42
	ti-cmem-4.16.00.00-modules-4.19.94-ti-r42
	libpruio-modules-4.19.94-ti-r42

	# pointless, you can read more than 30 MB/s from /dev/urandom thanks to hwrng
	haveged

	# use journalctl instead of oldschool logfiles in /var/log
	rsyslog
)
sudo apt-get purge "${purgepkgs[@]}"

# NOTE: persistent journal is disabled by default, so systemd-journald only
# keeps a "runtime journal" in ram.  To enable persistent journal logging to eMMC:
sudo mkdir /var/log/journal && sudo systemctl restart systemd-journald
# but only do that if you really need it, better to avoid unnecessary eMMC writes.