Actually, that is not true. I have written a tool (also a script) myself that allows you to write unit tests, manage your scripts in git, load scripts in other

Actually, that is not true. I have written a tool (also a script) myself that allows you to write unit tests, manage your scripts in git, load scripts in other scripts, etc. Maybe I will post a Show HN in the coming weeks, but at the moment I would like to round up some edges before posting it. In my experience, the biggest problem is that there are many different runtime environments out there that differ in detail and make it hard to write scripts that run everywhere. But programmers not applying all their skills (e.g. writing tests) to build scripts are also part of the problem.