Wow, seeing this on hackernews made me shed a year. I picked up maintenance of GNU Smalltalk when I was 19 and kept it going for about 11 years. In the meanwhi

Wow, seeing this on hackernews made me shed a year. I picked up maintenance of GNU Smalltalk when I was 19 and kept it going for about 11 years. In the meanwhile I wrote thousands and thousands of lines of C and Smalltalk code, a generational and incremental GC, a debugger, a documentation generator, a JIT compiler and whatever else. Maintaining GNU Smalltalk taught me so much about testing, release engineering, C programming, mentoring and almost everything else I learnt about programming during those 11 years.