Impressive!
Some questions:
* How long did it take you to build OneDev (e.g. in hours time invested)?
* Do you expect it to scale, e.g. to large repos, large histories, many issues?
* I see you have a "code comments" feature with which people can make comments in the actual code tree, as opposed to the commits (https://code.onedev.io/projects/onedev-server/codecomments). I implemented this for Google Code Search, nice to see it in more tools! Do your comments survive changes to the file?
And one feature I noticed missing: Pressing "Y" to get a commit-pinned permalink, like Github, Gitlab, and the other tools do.
Keep it up!