There's a merged pull request on the void-packages repository opam: add dependency on bubblewrap. https://github.com/void-linux/void-packages/pull/28976 Description: [chris@cmbvm ~]$ opam init [NOTE] Will configure from built-in defaults. Checking for available remotes: rsync and local, git. - you won't be able to use mercurial repositories unless you install the hg command on your system. - you won't be able to use darcs repositories unless you install the darcs command on your system. [ERROR] Missing dependencies -- the following commands are required for opam to operate: - bwrap: Sandboxing tool bwrap was not found. You should install 'bubblewrap'. See https://opam.ocaml.org/doc/FAQ.html#Why-does-opam-require-bwrap. #### General - [ ] This is a new package and it conforms to the [quality requirements](https://github.com/void-linux/void-packages/blob/master/Manual.md#quality-requirements) #### Have the results of the proposed changes been tested? - [ ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me - [ x] I generally don't use the affected packages but briefly tested this PR