Vicktor Lambok Desrony — Engineering Blog & Systems Architecture LabDeep-dive backend engineering articles on Go, Node.js, PostgreSQL internals, distributed systems, containerization, and AI agents.https://vicktordesrony.dev/Adaptive Backpressure & Zero-Allocation Worker Pools in Go at 65k RPShttps://vicktordesrony.dev/blog/adaptive-backpressure-go-distributed-systems/https://vicktordesrony.dev/blog/adaptive-backpressure-go-distributed-systems/Why naive goroutine-per-request patterns collapse under downstream tail-latency spikes, and how to engineer TCP Vegas-inspired concurrency limiters with deterministic memory bounds.Sun, 18 Oct 2026 00:00:00 GMTBackend Architecturegolangdistributed-systemsconcurrencybackpressureperformanceHardening Multi-Tenant Container Sandboxes with Seccomp-BPF, Namespaces & eBPFhttps://vicktordesrony.dev/blog/container-isolation-seccomp-ebpf-multi-tenant-runtimes/https://vicktordesrony.dev/blog/container-isolation-seccomp-ebpf-multi-tenant-runtimes/Designing sub-50ms isolated execution environments for untrusted workloads and AI agent code execution using Linux kernel primitives and eBPF syscall telemetry.Sat, 19 Sep 2026 00:00:00 GMTAI Agents & Systemscontainerizationlinux-kernelebpfsecurityai-agentsgolangArchitecting Deterministic AI Agent Orchestration with Go, Sandboxes & pgvector RRFhttps://vicktordesrony.dev/blog/deterministic-ai-agent-orchestration-go-pgvector/https://vicktordesrony.dev/blog/deterministic-ai-agent-orchestration-go-pgvector/Moving beyond fragile prompt loops: how to build production-grade autonomous AI agents using bounded DAG execution, idempotent tool keys, and Reciprocal Rank Fusion memory.Mon, 05 Oct 2026 00:00:00 GMTAI Agents & Systemsai-agentsgolangpgvectorcontainerizationdistributed-systemsDefeating libuv Event Loop Starvation in Node.js with Zero-Copy Worker Poolshttps://vicktordesrony.dev/blog/nodejs-libuv-event-loop-zero-copy-worker-threads/https://vicktordesrony.dev/blog/nodejs-libuv-event-loop-zero-copy-worker-threads/How a single 40ms synchronous payload parse stalls 10,000 concurrent sockets, and how to transfer ArrayBuffers across V8 isolates in O(1) time.Mon, 28 Sep 2026 00:00:00 GMTRuntime Internalsnodejstypescriptv8performanceconcurrencyInside PostgreSQL MVCC, HOT Updates, and a 42k TPS Sub-Millisecond Ledgerhttps://vicktordesrony.dev/blog/postgresql-mvcc-hot-updates-high-throughput-ledger/https://vicktordesrony.dev/blog/postgresql-mvcc-hot-updates-high-throughput-ledger/Deconstructing 8KB heap page internals, write amplification from secondary B-Tree indexes, and how Heap-Only Tuples (HOT) + append-only partitioning unlock extreme OLTP throughput.Mon, 12 Oct 2026 00:00:00 GMTDatabase Internalspostgresqldatabasemvccstorage-enginefintechZero-Downtime Schema Migrations at Scale: Expand-Contract & Lock Guards in PostgreSQLhttps://vicktordesrony.dev/blog/zero-downtime-database-migrations-expand-contract-postgres/https://vicktordesrony.dev/blog/zero-downtime-database-migrations-expand-contract-postgres/Why a naive ALTER TABLE ADD COLUMN or CREATE INDEX can halt production traffic behind an AccessExclusiveLock queue, and how to automate safe multi-phase migrations.Thu, 01 Oct 2026 00:00:00 GMTDatabase Internalspostgresqldatabasemigrationsdistributed-systemsreliability