I use codemirror to render code snippets. One of the use case for our product is to let users review the code and write comment on individual lines (think pull request review on GitHub).
I looked at the add-on ecosystem and didn’t find anything suitable for writing review comments on CodeMirror. I’m willing to spend time to build and release OSS add-on to codemirror which supports writing code review comments. Is there something I should look at to get started? e.g. highlight.js might be useful for highlighting lines for which comments is being made.
Is anyone else interested in this effort? Are there existing add-ons that I might have missed?