This will use the latest stable repository of Alpine (for example `v3.19`). To use a different version of Alpine simply change `latest-stable` to whatever version you want. Do note that you can not (easily) downgrade your system's version. There also is the `edge` repository which contains more packages but it is not recommended because it can result in faster breakage of your system.
We also host our own repository which contains some packages not found in the stable repository like `nix` but also our own packages like `linux-hardened`. If you want to add it to your system edit `/etc/apk/repositories` and add this line under the other repositories:
