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

New package: rsgain-3.4
https://github.com/void-linux/void-packages/pull/47594

Description:
ReplayGain/EBU R 128 loudness normalisation tool. Similar to `loudgain` (already in Void repos), but with more recent development and friendlier user interface. Homepage [here](https://github.com/complexlogic/rsgain).

Needs C++{20,23}, so it needs a minimum GCC version of probably at least 10.

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

#### New package
- This new package conforms to the [package requirements](https://github.com/void-linux/void-packages/blob/master/CONTRIBUTING.md#package-requirements): **YES**

#### Local build testing
- I built this PR locally for my native architecture, `x86_64-glibc`
- I built this PR locally for these architectures:
  - aarch64-musl
  - armv7l
  - amv6l
  - armv6l-musl