<p>The fact I'm picking the languages in this project slightly independently of the problems may be leading to poor pairings (I don't know what problems are coming up, so it's hard to make a schedule that maps well). I think what I most wanted to try with TCL was complex string manipulation. But AOC2024 day 5 appears to be asking me to implement… some sort of sorting algorithm? An auto-sorting data structure? This may turn out to be hell in the exact way trying to do file input in FORTRAN was hell.</p>