dev/null

notes on systems, networks, and building things

Understanding TCP Congestion Control in Practice

July 18, 2026

A deep dive into how BBR, Cubic, and Reno behave under real-world network conditions.

networkingtcpbbr

Building a Self-Hosted Email Stack with maddy

July 12, 2026

Replacing Postfix + Dovecot + Rspamd with a single Go binary.

emailself-hostedgo

DNS Records Every Developer Should Know

June 28, 2026

A, AAAA, CNAME, MX, TXT, SPF, DKIM, DMARC — what they are and when to use them.

dnsinfrastructure