Tatu Mäkijärvi

Marketing @ Avrea

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About

Tatu leads marketing for Avrea. Prior to Avrea, he's lead marketing for succesful startup and scaleups, including Hoxhunt, SYNQ and Pento.

Posts by Tatu Mäkijärvi

Soft lavender 3D illustration of a magnifying glass over a CI workflow, surrounded by logs, metrics, and timing icons.

16 September 2026

GitHub Actions observability: understanding why your CI is slow

Use GitHub Actions logs, workflow timing, runner metrics, and cache data to investigate slow jobs, flaky tests, and CI delays.

Five stacked cache layer blocks labeled actions/cache, docker layers, build cache, packages, and git lfs, beside the title A guide to GitHub Actions caching

01 September 2026

A guide to GitHub Actions caching

Every way to cache in GitHub Actions: actions/cache, setup actions, Docker layers, tool caches, and faster backends, with YAML for each.

How to Speed Up GitHub Actions

Why GitHub Actions builds are slow, and what actually fixes it: cache hits, concurrency groups, matrix sharding, and when faster runners pay off.