Blog

Learn SQL with sqlite3: filter, join, group, and rank rows, read a query in execution order, and use EXPLAIN to find out why a query is slow.

Learn agile: the manifesto values, Scrum and Kanban basics, retrospectives, and the trust-first habits that keep Scrum Masters and coaches useful.

Learn platform engineering fast: what an internal developer platform is, platform-as-a-product thinking, golden paths, cognitive load, and why platforms fail.

Learn AWS Lambda: create, invoke, and delete a Python function with the AWS CLI, and understand cold starts, invocation types, concurrency, and cost.

SPDX vs CycloneDX compared on standards status, German BSI rules, VEX, license data, tool defaults, and version churn, with real Syft output for each format.

Learn fd, the fast find alternative: search by name, regex, and glob, filter by type and depth, respect .gitignore, and run commands on results.

Graph engineering designs an AI agent’s control flow as nodes, edges, and shared state, so loops become visible, pausable, resumable, and testable.

Learn zsh fast: glob qualifiers, parameter expansion, arrays, completion, history, options, key bindings, and .zshrc, plus a verified command reference.

Learn Nushell fast: tables and pipelines, JSON, CSV, and TOML files, records, lists, custom commands, and config, plus a searchable command reference.

AI evals explained: how datasets, graders, and scores tell you whether a language model feature works, and why vibe checks and benchmarks fall short.