# Ballad of asdf > Once upon a time there was a programming language
> There were many versions of it
> So people wrote a version manager for it
> To switch between versions for projects
> Different, old, new. > Then there came more programming languages
> So there came more version managers
> And many commands for them > I installed a lot of them
> I learnt a lot of commands > Then I said, just one more version manager
> Which I will write instead > So, there came another version manager
> **asdf version manager** - > A version manager so extendable
> for which anyone can create a plugin
> To support their favourite language
> No more installing more version managers
> Or learning more commands --- *This was the mail I wrote to a few friends to tell them about the project. Thanks to [@roshanvid](https://twitter.com/roshanvid) for suggesting that this go into the readme*