About 10 years ago I stumbled upon an alleged journal by Donald Knuth during the very early days of TeX development. This was basically just a text file with dates and notes. It was a fascinating look at what development was like on a timeshare system—iirc one entry maligned how slow the system was that evening.<p>Does anyone know what I'm talking about, and where I could find it again? Google is no help at all.
Run `texdoc errorlog`, or visit <a href="http://mirrors.ctan.org/info/knuth-pdf/errata/errorlog.pdf" rel="nofollow">http://mirrors.ctan.org/info/knuth-pdf/errata/errorlog.pdf</a> — published as Chapter 11 ("The error log of TeX") of the book (collection of papers) <i>Literate Programming</i> (<a href="https://cs.stanford.edu/~knuth/lp.html" rel="nofollow">https://cs.stanford.edu/~knuth/lp.html</a>), and it best makes sense if you also read the previous Chapter 10 "The errors of TeX" (DOI 10.1002/spe.4380190702, <a href="https://yurichev.com/mirrors/knuth1989.pdf" rel="nofollow">https://yurichev.com/mirrors/knuth1989.pdf</a>).