Absolutely 0 framework or libs, nothing even for logging. Code architecture that would be left in the dust by most university semester projects.
This is how plsql codebases look, but boy Java (and rest of the world) moved quite far since 1995.
I’ve been on projects with multiple languages, but the truly active code was done in only two. The other languages were used in completed modules where we do routine maintenance and rare alterations.
LLMs. I've expanded the circle of languages I use on a frequent basis quite dramatically since I started leaning on LLMs more. I used to be Python, SQL and JavaScript only. These days I'm using jq, AppleScript, Bash, Go, awk, sed, ffmpeg and so many more.
I used to avoid infrequently used DSLs because I couldn't hold them in my memory. Now I'll happily use "the best tool for the job" without worrying about spinning up on all the details first.