[Dayshine]

Hi, I'm the author of a niche language server extension (https://marketplace.visualstudio.com/items?itemName=tboby.cw...).

Is there any guidance on what I would need to do to support VSO? Do I need to do anything?

I'm a bit concerned that it sounds like I have to pay in order to write/test environments. Do you not think this will be a barrier to adoption?

[lostintangent]

Your extension should “just work”. And yes, we have a self-hosted environment solution that you can use to test out your extension in the web, and it’s entirely free: https://aka.ms/vso-docs/vscode/self-hosted.

[chuxel]

If you run into trouble, we've also expanded the Remote Development extension guide in VS Code documentation to cover Visual Studio Online as well: https://aka.ms/vso-docs/developing-extensions