We have built a system called Mirrorverse that allows for tailoring all the way from changing options as we know it from our everyday software, to reprogramming the software live while a meeting is ongoing. mastodon 
YOUTUBE k4cKa9EzmzI Published Aug 28, 2023.
Mirrorverse is a proof-of concept system that shows how live tailoring can be technically realized in a video conferencing interface. It builds on the Webstrates software stack consisting of Webstrates, Codestrates, and Varv. pdf github
Developing with Webstrates is fundamentally different from traditional web development, so it’ll be easier to get started with a couple of tutorials. The tutorials are all located in the Webstrates tutorials repository. site
Codestrates v2 is a development platform for the Webstrates platform. With Codestrates, you can create dynamic webpages that can be edited directly from within the browser — and editing can also be done collaboratively. site
Varv obviates the need for software creators to carefully design and craft extension mechanisms by embracing accretive extensibility at the language level. Any Varv program can be extended or modified with new features without changing the original source code. site
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We borrow the term moldable from "Moldable Development is a way of programming through custom tools built for each problem." site