I am a civil engineer. But I love coding esp. C programming on BSD or any Unix-liked platforms kinda POSIX or SUS. I am 50. Dating back to the time of my class, there were no computer science courses. I have long been working for nearly 30 years. I keep coding and practicing my computer skills. Now I have a retail shop selling construction equipment. I don't want to purchase any applications to control my inventory. So I code on my own. C back-end running as CGI behind Apache server on NetBSD (and behind strong firewall). Some HTML and Javascript are incorporated, of course. Front-ends can be any web-browsers.