apk package manager
APK is the package manager originally developed by Alpine Linux and used on OpenWrt development snapshots. Note it has nothing to do with Android or other systems that may use the same acronym.
Useful references:
Needs some info about OpenWrt's apk version 3, whereas Alpine Linux still using apk version 2, so there internal/external differences etc.
Invocation
Package manipulation
Informational commands
Options
Examples
Basics
Extras
Upgrading packages
Configuration
Adjust repositories
Local repositories
Change architectures
Proxy support
Troubleshooting
Out of space
Local repository
Non-standard installation destinations
Known Issues
apk adbdump
produces non-standard YAML in certain edge cases. If you run into this, please report it here.