In theory, you could write addons in whatever you want. But if your code is not supported by a JVM, your plugin would have to implement all the frameworks required to run it.
I wouldn't bother trying to do this - it's a vast effort which would force your Confluence to be run on an inferior platform
Of course, Connect addons that run on other platforms are a different story. See https://developer.atlassian.com/static/connect/docs/latest/index.html
Hello Community, Today we are going to talk about the three Scrum Roles. There is the Development Team, the Scrum Master and the Product Owner. In my opinion these three are all really impo...
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