The most simple but one of the most effective tricks I learned from an "old sweat" when I was a green junior dev just starting out... keep a folder called notes, and each day create a date-numbered file in the format YYYYMMDD.txt.

Put any code snippets, git links, lessons learned, meeting minutes or basically anything interesting in there each day.

Then to access it - you can bash script search, e.g., to find anything you wrote in 2022, you'd simple type;

grep "whatever" 2022*.txt

It works like a charm, been using it for fifteen years.