Blog
Notes from the engine room.
Engineering deep-dives, security breakdowns, and the occasional opinion on how we build infrastructure that's invisible until it isn't.
How we serve sub-millisecond decisions on a single VPS
Wed Apr 29 2026 00:00:00 GMT+0000 (Coordinated Universal Time)A walk through the engineering choices that let one Node process answer 25,000 ALLOW/DENY questions per second without breaking a sweat.
Acrossed Team · 2 min read
Why stateless security wins (and why we never store your traffic)
Wed Apr 22 2026 00:00:00 GMT+0000 (Coordinated Universal Time)A short argument for why a security layer that holds zero state about your users is, counterintuitively, more secure than one that holds everything.
Acrossed Team · 2 min read
AES-256 and HMAC-SHA256, explained for the developer in a hurry
Fri May 01 2026 00:00:00 GMT+0000 (Coordinated Universal Time)What they are, why we use both, and why one without the other is half a security model.
Acrossed Team · 3 min read