# Minimizing NixOS images

DevFeed: [Minimizing NixOS images](<https://devfeed.tech/articles/minimizing-nixos-images-32439.md>)

Original publisher: [Read original article](<https://nixcademy.com/posts/minimizing-nixos-images/>)

Author: Jacek Galowicz

Published: 2025-10-21T00:00:00Z

Content type: tutorial

Language: en

Sources: [Nixcademy Blog](<https://devfeed.tech/sources/nixcademy-blog.md>)

Topics: [Nix](<https://devfeed.tech/topics/nix.md>), [gnu linux](<https://devfeed.tech/topics/gnu-linux.md>), [build performance](<https://devfeed.tech/topics/build-performance.md>), [iteration](<https://devfeed.tech/topics/iteration.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [build](<https://devfeed.tech/tags/build.md>), [capabilities](<https://devfeed.tech/tags/capabilities.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [iteration](<https://devfeed.tech/tags/iteration.md>)

## AI overview

Part two of a four-part series that explains how to reduce a NixOS appliance image from 1.5 GB to around 360 MB. It covers using Nix tools to inspect dependencies and applying configuration techniques to create smaller system images.

## Source excerpt

Part 2 of our NixOS appliance image series - Learn how to use native Nix tools to shrink the size of your NixOS system images with quick iteration cycles!