Any flavor of vi, Gnu Screen, lrzsz, bash with the usual cli tools (awk, sed, grep, tail, head, rev, cat, tac, and recently jq and yq). Also openssh client. Some flavor of netcat is also crazy useful too. This is a good home for me to do my thing.
Edir: oh, and git. How did I forget git?!
Not even power and water supplies?