There's a closed pull request on the void-packages repository

hydrus: remove package
https://github.com/void-linux/void-packages/pull/46993

Description:
Up to date versions of this software are unable to be built as we are missing packages that:
- i cannot build (lacking knowledge).
- nobody else has done (no other demand).

The current version in repos is also not launching anymore.
Void Repos probably have removed Qt5 dependencies in favor of Qt6 packages, breaking this.