Keeping software fast, secure and healthy
A practical guide to keeping software and web apps fast, secure and reliable: what to measure, the tools that help, and a maintenance routine that stops small problems becoming outages.
KALKIGEN JOURNAL
Notes on building
what matters.
Practical thinking on engineering, intelligent systems, spatial products, and the craft behind digital work that lasts.
Latest thinking
Vector databases, explained for product teams
How embeddings, vector indexes and similarity search work together, and how to design a vector database layer that keeps AI answers fast, relevant and private.
Building software for Windows, macOS and Linux in 2026
Cross-platform desktop development has changed: ARM laptops, lighter frameworks, on-device AI and stricter signing. Here is how to ship one product that feels native everywhere.
Editing short-form video people actually finish
Hooks, rhythm, captions, and sound: the editing decisions that decide whether a Reel or Short is watched to the end or scrolled past.
The quiet work that keeps a website fast and safe
Launch is the start, not the finish. A practical look at the monitoring, updates, backups, and small improvements that keep a site dependable.
Five habits of Android apps people keep installed
Fast starts, respectful notifications, offline resilience, and careful releases: the engineering and design habits behind apps that earn their place on a home screen.
Building security into the product
Practical ways to make security part of product decisions from the first architecture sketch, instead of a checklist bolted on before launch.
What makes an AI answer trustworthy?
A field guide to retrieval, evidence, and useful safeguards for private knowledge assistants that teams can rely on.
From spatial data to clearer decisions
How teams can turn drone imagery and measurable digital twins into practical site intelligence for construction, rail, and infrastructure.