Small => fast download fast rendering ideal for mobile small API -> small learning curve, smaller lock-in factor less framework, more javascript MVC components out of the box No need for JSX Flexible Use of functional programming: point free functions, partial applications/currying, composition, map, reduce, filter etc.. Used in production (Guild Wars 2, Lichess, Flarum) Great community, check the Gitter room

Backend: NodeJS, ExpressJs Frontend: MithrilJs Development Tools: Sublime Text 3, ConEmu, Git Bash Database: PostgresSQL, with Sequelize ORM

Nicolas Bevacqua is an Argentinian developer, he writes a blog and is the author of some pretty popular open source javascript libraries ( Horsey , Dragula , Rome , Insignia ). You should read his Javascript quality guide and then read the source code of his different libraries. This article: Designing front end components is also of interest.