---
title: "Watch Path to Trigger Build, Official Brew Repo, Clojure Support "
date: 2022-07-22T15:00:00.000+00:00
number: 0091
url: https://railway.com/changelog/2022-07-22
---

# Watch Path to Trigger Build, Official Brew Repo, Clojure Support 

Happy Friday! It’s hot, so we hope everyone stays cool as they push those commits. 

## Watch Path to Trigger Build

[Watch Paths](https://docs.railway.app/deploy/deployments#watch-paths) are gitignore-style patterns that can be used to trigger new deployments based on what file paths have changed. 

For example, a monorepo service may only want to trigger builds if files are changed in the `/packages/backend` directory. Any changes that don't match the patterns will skip creating a new deployment.

Special thanks to our users for suggesting this. Consider us your KFC to our Taco Bell. (Awaits a C&D from Yum Brands)

[Image: Untitled]

## Official Brew Repo

For those who may not know. Brew purports to be the missing package manager for many OSes and usually is the default way to deliver CLI tools on the mac. 

Our instructions to install Railway via brew previously required you to add an external “third-party repository” or TAP. 

No longer! Now installing the CLI is as easy as:

```javascript
brew install railway
```

Special thanks to [Branch Vincent](https://github.com/branchvincent) of Homebrew for adding our CLI to the official list.

## Clojure Langauge Support

Clojurians rejoice! The joy of hammock driven development now enters the friendly confines of Nixpacks. We hope your parenthesis keys are ready. For the record, we have only tested the language with the leiningen and ring toolchains. We ask for the community’s help with testing addtl. toolchains.

[We have a sample repo](https://github.com/AhmedMozaly/clojure-web-application) written by resident functional programing appreciator, [Ahmed](https://twitter.com/AhmedMozaly). [You can see it live over here.](https://clojure-web-application-production.up.railway.app/) `(apply shoutout "ahmed")`

Are you also a FP appreciator? [Add a language provider on Nixpacks today!](https://github.com/railwayapp/nixpacks/pulls) [(Or discuss what you wanna see supported.)](https://github.com/railwayapp/nixpacks/discussions/245)

## Improvements and Fixes

- Fixed an issue with Dockerfile detection
- Fixed an issue with accidental bans (sorry about that!)
- Added `NO_CACHE` option for Docker builds
- Improved infra assignment algorithm so new deploys are on boxes with higher resource availability