Desuperpacking Meta's Superpacked APKs

"Superpacking is a method of optimal binary compression developed by Meta to help reduce the size of their Android APKs. This compression for APKs makes sense for reducing network traffic required for distribution, but becomes an issue when trying to recover the original native ARM binaries for analysis. This post walks through the process of “desuperpacking” (decompressing) Meta Superpacked APKs. You will get an overview of Meta’s superpack compression, a quick look at Superpack internals, and eventually learn how to automate desuperpacking native Android ARM libraries using GitHub Actions."