Notes

Engineering notes, written while building

Explainers on the parts of the platform we had to reason through ourselves. No announcements dressed up as thought leadership.

18 Aug 2026
Tuning a Minecraft server that actually holds tick rate
Minecraft is effectively single-threaded, so flags and world settings matter far more than core count. Here is the order we tune things in.
Tutorial · 6 min
29 Jul 2026
Why NVMe changes the shape of your workload
Storage latency decides whether an application is designed around waiting. Moving from spinning disks to NVMe removed a whole class of architecture problems.
Engineering · 4 min
6 Jul 2026
Why we run services behind Cloudflare tunnels
The safest port is the one you never open. Tunnels let an A2Cloud node run services without accepting a single inbound connection.
Architecture · 3 min