During the talk, we will create an interpreter for a tiny programming language. The engine behind the implementation will be the so-called Grammars that are available in today's Perl 6. We will create the full language specification and describe all the actions it needs to do to execute the program.
The great part is that you no longer need to split your language implementation in traditional phases: lexer, parser, etc.. Neither you need a compiler of compilers to process the formal grammar rules and emit the lexer/parse code that you will later use in your compiler. All you need is just to write some Perl 6 code.
You even don't need to be a specialist in compilers or learn numerous tools like bison etc. to create your own language in a few hours.