Millerson Gentoo Overlay

Using repository with newer portage
A package manager with git repository support can be used for sync. Portage version 2.2.16 and later supports git sync.

The repos.conf entry for repository sync may look like the following:

```
[millerson-overlay]
location = /usr/local/portage/millerson-overlay
sync-type = git
sync-uri = https://git.millerson.name/millerson.name/gentoo-overlay.git
auto-sync = true
clone-depth = 1
```

Please note that if you use existing repository location, you need to remove the existing repository first.