1. HwiBitcoin Hardware Wallet Interface
2. GuiBitcoin Core GUI staging repository
3. Secp256k1Optimized C library for EC operations on curve secp256k1
6. ctaesSimple constant-time AES implementation
9. qa-assetsBitcoin Core related blobs used for quality assurance
12. leveldb-oldBitcoin Core's LevelDB branch - upstream is https://github.com/google/leveldb