Reading notes: QUIC, 0-RTT and why HTTP/3 is UDP
Moving HTTP onto UDP was not insane — head-of-line blocking is the reason.
Networking
Tuning TCP BBR and fq on a high-latency link
Switching off loss-based congestion control on a long-fat path, and the fq gotcha for UDP.
WireGuard: why it's so small
~4k lines, one cipher suite, no negotiation. The design choices that make it auditable.
The TLS 1.3 handshake, in plain terms
One round trip instead of two, and why the ServerHello already carries a key share.