Playing with Zellij this week (a terminal multiplexer like screen/tmux) and it's worked great so far.
It's nice having many short-lived, named terminal sessions on a remote machine. Normally I'd have multiple iTerm windows, but they end up with huge histories.
I've been playing with Obsidian and having a great time. It's fundamentally a .md editor but it has so many affordances that it feels different. Link autocompletion, highlighting backreferences, polished mobile app.
A lot of teaching resources focus on folder structure, oddly.
After further playing with my LLM project, I'm surprised how hard it is to tune with system prompts.
My agent kept saying "obviously" even though my prompt said "helpful, professional". Eventually I found that a "courteous" prompt gets "of course" which is better but not ideal.