As quantum computing advances, traditional cryptographic systems face existential threats. This tribe unites cryptographers, security engineers, and open-source developers working on post-quantum cryptography (PQC)—algorithms resistant to quantum attacks. Discussions cover NIST standardization updates, lattice-based vs. hash-based schemes, implementation challenges in TLS and blockchain, migration strategies for legacy systems, and real-world performance trade-offs. Members engage in rigorous technical debates about cryptographic assumptions, side-channel vulnerabilities, and the ethics of cryptographic agility. With governments and enterprises racing to adopt PQC, this community provides a vital forum for collaborative defense in the quantum era.