Foundational utilities: Busybox, ADB and fastboot binaries, WebView replacements, bootloop protectors, and system property editors. The kind of tools most power users install first — they make everything else easier to set up and debug.
Some modules depend on Busybox utilities (like grep, find, or sed) in their install scripts. If a module fails to install with errors about missing commands, installing a Busybox module usually fixes it.
Boot into recovery and delete the module's folder from /data/adb/modules/. If you have a bootloop protector module installed, it will automatically disable the last-installed module after a set number of failed boots.
Download the module ZIP from its page on the Androidacy repository, then open your root manager app (Magisk Manager, KernelSU, or APatch) and install the ZIP from there. Reboot your device to activate the module.