Web
Modern CSS layout: grid, container queries and :has()
CSS has quietly absorbed features that used to need frameworks or JavaScript. A tour of the layout tools worth knowing now.
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Languages
Why 0.1 + 0.2 isn't 0.3: floating point for working developers
Floating point isn't broken — it's binary. Understanding what it can and can't represent tells you when to use it and when to reach for decimals or integers.
DevOps
Structured logging: making logs you can actually query
Free-form log lines are easy to write and painful to search. Emitting events with consistent fields turns logs into data.
Tools
Talking about technical debt so the business listens
Saying "we need to refactor" rarely wins a planning meeting. Framing debt in terms of risk, speed and cost does.
AI & ML
Before you ship an LLM feature, build an eval set
LLM features fail in ways unit tests don't catch. A few dozen labeled examples and a repeatable scoring script turn "it seems fine" into evidence.
Databases
Transaction isolation levels without the jargon
Your database lets concurrent transactions see each other in controlled ways. Knowing which anomalies your isolation level allows prevents subtle, expensive bugs.
Languages
Compilers 101: from source code to running program
Every language implementation follows a recognizable pipeline. Knowing the stages makes error messages, tooling and performance easier to understand.
Security
Threat modeling for small teams in an afternoon
You don't need a security department to think like an attacker. A lightweight, repeatable session finds the risks worth fixing before they ship.
Tools
Monorepo or polyrepo? The trade-offs, honestly
Whether to keep all your code in one repository or many is mostly a question of tooling and team structure. Neither is free.
Tools
Seats, usage or open core? How developer tools make money
Understanding how your tools are funded helps you predict their future. A field guide to the common business models behind developer products.
Web
The case for boring technology
Every new technology you adopt spends some of your team's limited capacity for novelty. Spend it where it differentiates your product.
Languages
Threads, actors and channels: a guide to concurrency models
Languages offer very different tools for doing many things at once. Each model makes certain bugs impossible and others easy.