I'm investigating the possibility to write my own plugin for Jira Software (server edition) to integrate our VCS within the Development panel of an issue.
Basically I want to have the same integration as is available for GitHub / BitBucket, but with another system like GitLab, Gitea or maybe even AccuRev or some other less-known VCS.
However, I have not yet been able to find any documentation or reference about developing a plugin like this.
Is this available somewhere or can someone point me in the right direction?