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

nss: package libnsssysinit.so.
https://github.com/void-linux/void-packages/pull/37753

Description:
I needed this to be able to force Firefox to use a system-wide
nss certificate store.

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#### Testing the changes
- I tested the changes in this PR: **YES**

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- I built this PR locally for my native architecture, (x86_64-musl)