An in-depth look at tracking transactions with web3.js, with example functions for ETH and ERC20 tokens.

A team built a classified ads marketplace based on cryptocurrencies. In this article we walk through the whole story, from the research to the launch.

Tips for building a good API that any developer will appreciate in their day-to-day work.

Video games can be useful, show you how real people behave and teach you something.

Even big companies get it wrong. See how Medium broke basic design principles when it updated its layout grid.

I'm sick of seeing new (and honestly absurd) redesigns of Facebook, Skype and Twitter in my feed. Why not do something useful instead?

Some thoughts on the role of the designer in a project, what sets UI apart from UX, and a bit more.

The final part of our series on the pixel-perfect design handoff process: UI kits, exporting, component states, and typography.

We continue talking about pixel perfect design, this time about grids, responsive design, and animations.

Best practices for delivering a pixel-perfect design: tools, image optimization, working with SVG and more.

A guide for Ruby on Rails developers who want to learn how to deploy applications with Mina, Nginx, and Puma.

Different techniques to use web fonts properly.