What does HackerNews think of coq?

Coq is a formal proof management system. It provides a formal language to write mathematical definitions, executable algorithms and theorems together with an environment for semi-interactive development of machine-checked proofs.

Language: OCaml

The same can be done also with Coq[1], it is easy to learn[2], actively developed[3], and better documented[4]. You can also visit their discussion board[5]. Regarding the usual Lean vs Coq "war" and so-called "setoid hell" you can read a lengthy discussion on their GitHub[6].

[1] http://coq.inria.fr/

[2] https://learnxinyminutes.com/docs/coq/

[3] https://github.com/coq/coq

[4] https://softwarefoundations.cis.upenn.edu/

[5] https://coq.discourse.group/

[6] https://github.com/coq/coq/issues/10871

I wonder if it somehow can be integrated with Coq[1] and Univalent Foundations[2]. Probably these can be used as a more substantial "base" for this machine.

[1] https://github.com/coq/coq

[2] https://github.com/UniMath