Engineering Journal & Notes
Deep dives into .NET performance, distributed real-time systems, and AI workflows.
The journal is empty — deliberately.
I'd rather have a blank page than filler. The first articles are being written from real production problems — the anti-cheat bug that cost 21 students their placement test, the Redis cache key that cut speech costs by 35%, and what happens when an AI provider hits its quota mid-conversation.
Planned, not published.
The anti-cheat rule that locked students out
How telemetry turned a “motivation problem” into a fraud-logic bug — and what recovery looked like.
A Redis cache key you won't regret
Hashing audio content instead of users, and the cost curve that follows.
Under 30 ms: real-time without lying
SignalR, Redis Pub/Sub and why the server should own the scoreboard.
When the AI provider runs out of quota
Dual-key failover, tiered timeouts and deduplication in a Telegram bot.
No published articles yet. The first one will appear here the day it's ready.