Ask HN: What software are you thankful for?

In its original persona on both CP/M and MSDOS I used it as a text editor. On Linux I use "jstar" which is a WordStar clone, as one of the alter-egos of "joe".

I could also use "wordtsar" but "jstar" works for me. I even rename "jstar" to 'ws' to maintain my imprinting over nearly 40 years of usage.