# nektos/act

19 Hacker News commenters recommended nektos/act and 18 criticized it, November 2025 to November 2026. It was recommended in 10 of 13 months.

**Verdict:** Lets people run GitHub Actions workflows locally for fast feedback without pushing to GitHub. Critics say it only approximates the real environment and often fails on complex workflows.

## Why people recommend it

- Runs GitHub Actions workflows locally (5 comments): "Community software like act and Forgejo/Gitea Actions have made it a lot easier to run GitHub Actions workflows without involving GitHub" ([source](https://news.ycombinator.com/item?id=46334044)) "Just like you can run bash locally, you can run act and reproduce whatever Github trigger you need." ([source](https://news.ycombinator.com/item?id=49334813)) "Lets you run your actions locally. I've had significant success with it for fast local feedback." ([source](https://news.ycombinator.com/item?id=46625151))
- Fast local feedback loop (2 comments): "It's generally very helpful - someone else mentioned here the fundamental problem is lack of a tight feedback loop." ([source](https://news.ycombinator.com/item?id=46621914)) "Lets you run your actions locally. I've had significant success with it for fast local feedback." ([source](https://news.ycombinator.com/item?id=46625151))
- Reproduces CI problems locally (2 comments): "Just like you can run bash locally, you can run act and reproduce whatever Github trigger you need." ([source](https://news.ycombinator.com/item?id=49334813)) "`act` should help most teams reproducing CI locally." ([source](https://news.ycombinator.com/item?id=46910957))

## What people warn about

- Hard to replicate real environment (4 comments): "Not until you try to use it do you realize it's almost impossible to recreate any moderately complex workflow." ([source](https://news.ycombinator.com/item?id=46631289)) "I remember it NOT being a direct stand in locally. Like it covered 80% of use cases." ([source](https://news.ycombinator.com/item?id=46615801)) "I have had a hard time replicating simple set ups with this." ([source](https://news.ycombinator.com/item?id=46601395))
- Known compatibility gaps (3 comments): "Usually due to steps/scripts that use github-internal APIs, but afaict far from always." ([source](https://news.ycombinator.com/item?id=48280254)) "Even an established and well-maintained project like Act has known compatibility issues" ([source](https://news.ycombinator.com/item?id=49079733)) "it still isn't an 100% drop-in replacement" ([source](https://news.ycombinator.com/item?id=46616899))
- Setup and Docker pull failures (3 comments): "I had extremely bad experience trying to setup act on my Macbook." ([source](https://news.ycombinator.com/item?id=48278929)) "it failed to pull the docker images and I gave up" ([source](https://news.ycombinator.com/item?id=48117004)) "for us it wasn't working most of the time" ([source](https://news.ycombinator.com/item?id=46190881))

## Alternatives hackers recommend

- [SelfCI](https://hackerapproved.com/p/selfci.md): 6 recommend

## Cite as

Hacker Approved, "nektos/act", https://hackerapproved.com/p/act/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).