Notes on Systems — M. Erispec https://merispec.duckdns.org/ Occasional writing on networking, distributed systems and the tools I use. en QUIC in practice: what I learned running it in production https://merispec.duckdns.org/posts/quic-in-practice.html Thu, 12 Mar 2026 10:00:00 GMT A few notes on tuning, retransmission behaviour and the surprises we hit. A short tour of TCP congestion control https://merispec.duckdns.org/posts/tcp-congestion-control.html Fri, 27 Feb 2026 10:00:00 GMT From Reno to BBR — what each algorithm optimises for, and when it matters.