In 2018, with a group of researchers and developers (some of whom are members of the W3C WebAudio WG) we proposed a WebAudio Plugin standard (WAP) and gave birth to a growing ecosystem for the development of computer music applications in the browser [1]. These plugins can be seen as a transposition of what exists in the native world, adapted to be web-aware (i.e. a plugin can be remotely included in any host web audio application by a URI). Since then, many contributions have been made and many plugins have been developed. Not only several "host" applications have appeared, including commercial ones, but also tools to help developers, including an online IDE coded as a Progressive Web App (PWA) to write and publish plugins from A to Z, the audio DSP core of the plugins being compiled into WebAssembly. Some of the plugins we developed during the French research project WASABI are now sold as add-ons to an online Digital Audio Workstation (Amped Studio), showing the new opportunities that these emerging APIs have created.