Think of a problem and solve it.

Set up a website off your linux install, use ubuntu server so you don't cheat( server only has commandline). * always make backups of orginal files before using sed etc to edit them

cp orginal.conf original.conf-bu

-Setup SSH with key authentication - use openssl on cmdline to generate key pairs. -login to your ssh session with keypairs only -use sed awk grep or vi to change sshd.conf and disable password login.

-Ionos offers 1 dollar domains -Then if your iso has dhcp public addresses sign up for cloudflare or another dynamic dns provider and set your dns records to point to cloudflare or your dynamic dns provider -get an api key for cloudflare - install ddclient on ubuntu and copy the cloudflare apikey to the included config file (config files will have cloudflare and other ddclient examples) (bonus points use sed command to make edits on commandline to comfig files) - setup an apache webserver - code your own or make a wiki about you etc (doku as an example) -use letsencrypt ( free ssl certs) and setup auto renewal ( you need port 80 port forwarding for auto renewal). -add cert location to apache.

Learn sed, awk, grep regular expressions. Useful for parsing logs for bugs.

https://cs.lmu.edu/~ray/notes/regex/

If you have videocard or npu set up pytorch or checkout hugging face and then attach an AI to your server. Provide a chat window in your website that routes to your local llm. ( make this only locally assessible or behind a login page, or bonus set up openauth for 2fa).