# GitHub Actions Things I Wish I Knew Earlier

DevFeed: [GitHub Actions Things I Wish I Knew Earlier](<https://devfeed.tech/articles/github-actions-things-i-wish-i-knew-earlier-10746.md>)

Original publisher: [Read original article](<https://eduuh.com/blog/github-actions-things-i-wish-i-knew>)

Author: EduuhMuraya

Published: 2026-02-22T00:00:00Z

Content type: tutorial

Language: en

Sources: [EduuhMuraya](<https://devfeed.tech/sources/eduuhmuraya.md>)

Topics: [GitHub Actions](<https://devfeed.tech/topics/github-actions.md>), [CI/CD](<https://devfeed.tech/topics/cicd.md>), [GitHub](<https://devfeed.tech/topics/github.md>), [OpenID connect (OIDC)](<https://devfeed.tech/topics/oidc.md>), [Azure](<https://devfeed.tech/topics/azure.md>), [ACR](<https://devfeed.tech/topics/acr.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Docker](<https://devfeed.tech/topics/docker.md>), [Command-line interface](<https://devfeed.tech/topics/cli.md>)

Tags: [acr](<https://devfeed.tech/tags/acr.md>), [azure](<https://devfeed.tech/tags/azure.md>), [caching](<https://devfeed.tech/tags/caching.md>), [ci-cd](<https://devfeed.tech/tags/ci-cd.md>), [cli](<https://devfeed.tech/tags/cli.md>), [devops](<https://devfeed.tech/tags/devops.md>), [docker](<https://devfeed.tech/tags/docker.md>), [github](<https://devfeed.tech/tags/github.md>), [github-actions](<https://devfeed.tech/tags/github-actions.md>), [oauth](<https://devfeed.tech/tags/oauth.md>), [secrets](<https://devfeed.tech/tags/secrets.md>), [workflow](<https://devfeed.tech/tags/workflow.md>)

## AI overview

A practical guide to non-obvious GitHub Actions considerations when setting up CI/CD for a monorepo, covering matrix strategies, OIDC authentication, buildx credentials, registry caching, immutable image tags, and manual workflow triggers.

## Source excerpt

Matrix strategies, OIDC auth, registry caching, and a few footguns I hit setting up CI/CD for a monorepo.