New comment by jdnuemm on void-packages repository

https://github.com/void-linux/void-packages/pull/34167#issuecomment-981049548

Comment:
@Duncaen if i am helpfull here i will keep this package up to date in the future. But in the moment the whole void package thing is new to me. Anyway i managed to cross compile builds for aarch64-musl,  aarch64 and native for x86_64-musl.

```
./xbps-src -m ~/masterdir-musl binary-bootstrap x86_64-musl
./xbps-src -m ~/masterdir-musl pkg firefox-esr

sudo xbps-install -S cross-aarch64-linux-gnu
./xbps-src -a aarch64 pkg firefox-esr

sudo xbps-install -S cross-aarch64-musl
./xbps-src -a aarch64-musl pkg firefox-esr
```