There is an updated pull request by xtraeme against master on the void-packages repository

https://github.com/xtraeme/void-packages xbps-src-ultra-fast
https://github.com/void-linux/void-packages/pull/12797

xbps-src: multiple performance improvements
xbps-src: multiple performance improvements

- use xbps-checkvers(1) to resolve dependencies.
- all dependencies are installed at once for the host and target.
- the `show-build-deps` target is now much faster.
- the `update-bulk/show-repo-updates` targets are now much faster.
- the `update-sys/show-sys-updates` targets are now much faster.
- the `bootstrap` target now works on musl hosts.
- simplified some loops.
- use cut(1) rather than awk(1) where applicable.
- multiple random changes to improve performance.

 Based on work started by @Duncaen on https://github.com/void-linux/void-packages/pull/12433

Close https://github.com/void-linux/void-packages/pull/12433
Close https://github.com/void-linux/void-packages/pull/11282

A patch file from https://github.com/void-linux/void-packages/pull/12797.patch is attached