kanzalibrary
AntiX-Core is what you need. I found a ‘stable LTS and true minimalist system’ without dbus, elogin, and systemd. You can check the installation here from anticapitalista. Create this from VM, snapshot, and install on your device.
AntiX wouldn’t let me install any packages or update. It would keep telling me I needed to wait a few hours to access the repos. I did like how you could swap between several desktop environments easily.
Just manual change the repo and problem solved…
And I need to clarify this because AntiX IMO, under category Permacomputing for low power consumption without too much sacrificing the function than others [in my experiment].
+1 for that Thinkpad
Buku with extension Bukubrow is already good for me to have offline bookmark manager, flexibel function on CLI or browser. With Archivebox combination in my Librewolf reading my archive website.