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With the rise of TrollStore (a permanent sideloading utility for iOS 14-16.6.1), Nabzclan has optimized its library for apps that install permanently without 7-day resigning. The repo is "hot" because it offers native .tipa (TrollStore IPAs) alongside standard IPAs.
Furthermore, developers of indie games lose money when you use these repos. Use Nabzclan for abandonware or apps with predatory pricing, but consider buying the apps you actually use every day.