Mobile development is mostly on iOS with Swift and Objective-C but I've had some success creating certain types of apps in React Native and Flutter to support both iOS and Android.
I tend to favour React for front end web development but I don't really mind picking up any of the infinite alternatives.
Server and infrastructure decisions always depend on the type of project, but for large scale applications I love Phoenix and Elixir. For projects that need to get going quickly Google Firebase works well. This site is in Ruby on Rails which I first started using back in 2006.
This was the official app for Somerset House's exhibition in March 2012.
Throw snowballs at your Facebook friends
Node.js / Meteor-based Twitter widget
Re-engineered this Wordpress customisation removing thousands of lines of over-complicated code and replacing with a theme that was easy for junior developers to work with.
This Facebook app allowed users to track the course of their use of Nioxin over time.
In-depth prototyping of Ubuntu, the open-source operating system fleshing out many features and interactions
Natural Language prototyping system for Ubuntu specifications.
RIA development on Sony Playstation
Realtime video photo booth