Source: https://seerepo.com/r/Homebrew/brew/built
Markdown source: https://seerepo.com/r/Homebrew/brew/built.md
Description: brew is a Ruby repo. It makes its content with rexml, kramdown, and csv and is tested with rspec, simplecov, and minitest.

# What is brew built with?

brew is a Ruby repo. It makes its content with rexml, kramdown, and csv and is tested with rspec, simplecov, and minitest. It has 342,107 written lines, with 998 test files.

Read on November 5, 2026, at commit 0f4d92d.

Repository: https://github.com/Homebrew/brew

## Frontend

### Interface

- **ruby-progressbar**: 1 file

## Support

### Content

- **rexml**: 5 files
- **kramdown**: 4 files
- **[csv](https://seerepo.com/uses/csv)**: 1 file

### Testing

- **rspec**: 762 files
- **simplecov**: 4 files
- **minitest**: 1 file

### Tools

- **rubocop-md**
- **rubocop-performance**
- **ruby-prof**
- **RuboCop**: 7 files
- **stackprof**: 1 file

### Other

- **concurrent-ruby**: 2 files

## Other repos with a similar stack

- [astral-sh/uv](https://seerepo.com/r/astral-sh/uv/built): csv
- [AppFlowy-IO/AppFlowy](https://seerepo.com/r/AppFlowy-IO/AppFlowy/built): csv
- [warpdotdev/warp](https://seerepo.com/r/warpdotdev/warp/built): csv
- [pathwaycom/pathway](https://seerepo.com/r/pathwaycom/pathway/built): csv
- [meilisearch/meilisearch](https://seerepo.com/r/meilisearch/meilisearch/built): csv
- [rails/rails](https://seerepo.com/r/rails/rails/built): rexml

## Frequently asked questions

### What language is brew written in?

brew is written in Ruby, with 342,107 written lines.

### Does brew have tests?

Yes. brew has 998 test files and is tested with rspec, simplecov, and minitest.

### Which repos have a stack like brew's?

The ones that share most of its stack: astral-sh/uv, AppFlowy-IO/AppFlowy, and warpdotdev/warp.

## What is your repo built with?

Any public repo, with no account: https://seerepo.com/r/owner/repo/built, with the owner and name it has on GitHub.