I started to implement an integrated advanced code editor based on the same editor that powers Visual Studio Code.
It practically has all the features one can ask for in a professional code editor.
There are still a few key things missing like better default color themes, etc, but it already has a lot of features that are simply not present in the default code editor in Houdini.
Patreon members will receive a free license once it's released: https://www.patreon.com/posts/42395230 [www.patreon.com]