Guides

Choosing between Redis, PostgreSQL, and RocksDB for real-time analytics pipelines

I build and analyze data systems for a living, and one of the recurring questions I get from engineering teams and startups is: “Which storage should we pick for our real‑time analytics pipeline — Redis, PostgreSQL, or RocksDB?” I’ve spent time prototyping pipelines with all three, tuning them under load, and pushing them into production. Below I share a pragmatic, experience‑based guide to help you choose the right tool depending on...

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Why your firmware updates fail and how to make device upgrades reliable in the field

I’ve spent years testing devices, pushing firmware images over flaky networks, and waking up to devices bricked by a half-applied update. Firmware updates are where the rubber meets the road for security, reliability and user trust — and they’re also where product teams make mistakes that turn manageable risks into expensive field failures. In this piece I’ll walk through why firmware updates fail in the real world and share concrete...

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How to set up cost-aware autoscaling for a machine learning inference API

I run inference APIs for models of different sizes — from tiny classification services to multi-GPU transformer endpoints — and one problem always comes up: how do I keep latency predictable without blowing the budget? Autoscaling is the obvious answer, but naïve autoscaling that only looks at CPU or request rate often leads to oscillation, over-provisioning, or surprise bills. In this guide I’ll walk you through a practical, cost-aware...

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How to evaluate startup pitch decks for AI products with real market fit signals

I read a lot of pitch decks. Over the years I’ve developed a short list of signals that separate persuasive AI product pitches from noise. When investors, partners, or product teams ask me how to tell whether an AI startup is pointing to real market fit—or just polishing a clever demo—I reach for the same mental checklist. Below I share that checklist, the reasoning behind each item, red flags I’ve repeatedly seen, and practical tests...

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Step-by-step: migrating your team from Slack to a self-hosted Matrix setup

I recently led a migration of a mid-sized engineering team from Slack to a self-hosted Matrix setup, and I want to share the step-by-step playbook I used. If you’re contemplating the same move, you likely want more control over data, better federation options, or cost predictability. That’s exactly why we moved. In this guide I’ll cover planning, architecture choices, data migration strategies, day‑to‑day operations, and the...

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A practical guide to reducing AI hallucinations in customer support chatbots

When I started evaluating chatbots for customer support teams, one thing quickly became clear: hallucinations — confident but incorrect or fabricated responses from an AI — are the single biggest blocker to deploying models at scale. I’ve spent months testing retrieval-augmented pipelines, fine-tuning assistants, and watching support agents roll their eyes at answers that sounded plausible but were flat-out wrong. In this guide I’ll...

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What to look for when buying a privacy-focused Android phone on a budget

I’ve spent a lot of time testing phones, flashing ROMs and poking around settings to understand what really matters when you want privacy without paying flagship prices. If you’re trying to buy a privacy‑focused Android phone on a budget, you’ll quickly find that “privacy” can mean different things depending on whether you care most about software updates, limiting Google’s reach, hardware protections, or just reducing the number...

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