# 3 Years of Pattern Libraries: Lessons Learned

DevFeed: [3 Years of Pattern Libraries: Lessons Learned](<https://devfeed.tech/articles/3-years-of-pattern-libraries-lessons-learned-28825.md>)

Original publisher: [Read original article](<https://una.im/pattern-libs/>)

Published: 2016-09-26T00:00:00Z

Content type: opinion

Language: en

Sources: [Una Kravets](<https://devfeed.tech/sources/una-kravets.md>)

Topics: [Design system](<https://devfeed.tech/topics/design-system.md>), [Front end](<https://devfeed.tech/topics/frontend.md>), [Library](<https://devfeed.tech/topics/library.md>), [Development](<https://devfeed.tech/topics/development.md>), [CSS](<https://devfeed.tech/topics/css.md>)

Tags: [blog-post](<https://devfeed.tech/tags/blog-post.md>), [css](<https://devfeed.tech/tags/css.md>), [decision-making](<https://devfeed.tech/tags/decision-making.md>), [design-system](<https://devfeed.tech/tags/design-system.md>), [design-systems](<https://devfeed.tech/tags/design-systems.md>), [development](<https://devfeed.tech/tags/development.md>), [front-end](<https://devfeed.tech/tags/front-end.md>)

## AI overview

A retrospective on three years of working with pattern and component libraries across different teams. It discusses disagreements over architecture, CSS conventions, tooling, sharing, portability, and dependencies, and recommends time-boxed discussions that lead to clear team decisions.

## Source excerpt

Component libraries can be very useful in terms of organization, unity, and ensuring performance/accessibility. Here are 3 things to understand when embarking on building your own.