Ju Liu

Master of the Useless

Ju was born in China, moved to Italy as a kid, grew up eating a lot of pasta, and started messing around with computers. He now lives in London and works for NoRedInk. He loves to solve hard problems and build amazing products. When he’s not doing that, he’s probably rock climbing.

Past Activities

Ju Liu
28 May 2020
17.25 - 17.55

Live Coding Pong in Scenic

Is there a more iconic example of a videogame than Pong? I don't think so! In this talk, we will see how we can use Elixir and Scenic to build a copy of the immortal 1972 Atari classic. Retro gaming enthusiasts will love this talk for the fun trivia, while Elixir enthusiasts will love it for the live coding madness! At the end of the talk, you should know how to set up your own game using Scenic, while having learned a couple of tricks that are almost fifty years old, yet tremendously effective.


Learn how to build a game using Scenic


Intermediate / Retro gamers

Ju Liu
Code BEAM Lite Italy 2019
22 Mar 2019
14.30 - 15.10

Live coding an Escher painting using Scenic

In this talk we will be rebuilding "Square Limit," a famous painting by M.C. Escher using Elixir, Scenic and the amazing powers of functional programming. We will build the whole application from scratch, and we will start by taking a look at how Scenic works. We will then proceed to decompose the fractal nature of Escher's painting and we will rebuild it step by step. By the end of talk, you should have acquired a good level of understanding on how Scenic works and a lot of respect for Escher's work as a mathematician.


Introduce people to the Scenic framework and stimulate their curiosity towards functional programming and fractals.


People interested in Elixir, Scenic, Escher and fractals.