[daGrevis]

I will try this out!

Also there is diy-lisp[0]. I myself did it and it was very rewarding and fun![1]

[0]: http://kjetilvalle.com/posts/implement-a-programming-languag...

[1]: https://github.com/daGrevis/diy-lisp

[daGrevis]

The cool thing about diy-lisp is that at the end you implement standard library of your language in, well, your language![0]

[0]: https://github.com/daGrevis/diy-lisp/blob/master/stdlib.diy