Christopher Esplin

I developed the HiiT Clock app to build my Polymer skillset. I also learned to develop with D3.js and Redux in the process.

HiiT Clock was a three-month solo development effort to create an app that I'd like to use myself. I still use it every single time I work out as it is the best workout timer I've ever seen.

The Polymer and Redux implementations don't add much to the visual appeal of the app, but the D3.js timer is rock solid and I love how it guides me through my workouts. HiiT Clock also works with Chromecast, so my typical use case is to cast my timers on a television in my home gym.

• See more information at the following link: Github.com/deltaepsilon/quiver-timer

I've redesigned Calligraphy.org a few times by now. The most recent redesign was completed in 2015 and it it's showing its age. I need to spend an additional 6-12 months building it again.

Calligraphy.org is how I earn most of my money. It has been profitable since day one and is technically capable of supporting ten-times the clients that we've ever had on the system.

Calligraphy.org is a full-service online learning platform where my wife sells and teaches calligraphy and I ship calligraphy supplies worldwide.

We make new sales every single day and have been doing so since 2012. We dominate the search results for learning calligraphy online and are the leading provider of online calligraphy teaching.

• See more at the following link: Github.com/deltaepsilon/quiver-cms