Heroku's classic buildpack for Scala apps
⚡ Executive Summary & Quick Facts
Authoritative Sourceheroku-buildpack-scala is heroku-buildpack-scala is an open-source project written in Ruby: Heroku's classic buildpack for Scala apps.. It provides a free, self-hosted open-source alternative to Heroku.
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of October 2026), heroku/heroku-buildpack-scala has accumulated 190 GitHub stars and 316 forks. It is written in Ruby, licensed under MIT, and ranks #16,486 globally. It is actively maintained with the latest commit recorded on Oct 1, 2026.”
| Repository | heroku/heroku-buildpack-scala ↗ |
|---|---|
| Primary Category | buildpack |
| Language & Stack | Ruby |
| Software License | MIT |
| Community Traction | ★ 190 stars · ⑂ 316 forks · #16,486 globally |
| Maintenance | ● Active (Last commit: Oct 1, 2026) · 7 open issues |
| Replaces SaaS | Open Source Heroku Alternative (Discontinued free tier, expensive dyno and add-on pricing) → |
| Target Audience | Developers and engineering teams building with Ruby, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 92/100 · Grade AYes, heroku-buildpack-scala is actively maintained. Continuous telemetry recorded the last code commit on Oct 1, 2026 (30 days ago). Supported by 190 stars and 316 community forks, this repository holds a calculated health index of 92/100, reflecting regular maintenance (30 days ago) and healthy issue cadence.
Star History
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[](https://githubrepo.cloud/repo/heroku/heroku-buildpack-scala?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
[](https://githubrepo.cloud/repo/heroku/heroku-buildpack-scala?utm_source=readme_badge) [](https://githubrepo.cloud/repo/heroku/heroku-buildpack-scala?utm_source=readme_badge) [](https://githubrepo.cloud/repo/heroku/heroku-buildpack-scala?utm_source=readme_badge) [](https://githubrepo.cloud/repo/heroku/heroku-buildpack-scala?utm_source=readme_badge) [](https://githubrepo.cloud/repo/heroku/heroku-buildpack-scala?utm_source=readme_badge)Momentum
+10
STARS · LAST 30 DAYS
1
PER DAY
#973
MOST-STARRED Ruby
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +10 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +6 | +16 |
heroku-buildpack-scala gained 10 stars in the last 30 days, about 1 a day, and now has 190. It is about 15 years old and has averaged roughly 13 stars a year. It ranks #973 among Ruby repositories and #16,486 across all languages on GitHubRepo.
Trending Record
28
DAYS ON TRENDING
#8019
BEST RANK
Oct 2, 2026
FIRST APPEARANCE
Active
STATUS TODAY
heroku-buildpack-scala has maintained a continuous presence across global trending indexes, peaking at #8019. Below is the 30-day activity profile:
💡 Overview
heroku-buildpack-scala is an open-source project written in Ruby: Heroku's classic buildpack for Scala apps.
Engineered for speed, consistency, and developer ease, it solves common hurdles in buildpack, heroku, heroku-languages. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Ruby for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/heroku/heroku-buildpack-scala.git
cd heroku-buildpack-scala⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Ruby >= 3.1 with Bundler
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
heroku-buildpack-scala coordinates its core functionality through a modular Ruby pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Modern Web Interfaces
Build dynamic, responsive user experiences with component-driven architecture.
Enterprise Design Systems
Standardize design tokens, accessible widgets, and themes across engineering teams.
Interactive Data Dashboards
Render real-time telemetry, user feeds, and analytics with sub-millisecond updates.
Cross-Platform Web Apps
Deploy performant single-page applications optimized for both mobile and desktop browsers.
🚀 Getting Started
Install heroku-buildpack-scala using your package manager: `git clone https://github.com/heroku/heroku-buildpack-scala.git`
Initialize your project workspace or configuration file for heroku-buildpack-scala.
Import heroku-buildpack-scala into your codebase or invoke it directly from your terminal.
Execute your test suite or run `heroku-buildpack-scala --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Ruby, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
heroku/heroku-buildpack-scala is currently ranked #16,486 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #16,449 | rleeon/hoard | Rust | ★ 191 | Compare ↗ |
| #16,449 | yusufipk/dikte | Python | ★ 191 | Compare ↗ |
| #16,449 | crabtalk/bezel | Rust | ★ 191 | Compare ↗ |
| #16,449 | black-forest-labs/flux-action | Python | ★ 191 | Compare ↗ |
| #16,449 | thesnarkitecht/rembrandt | C++ | ★ 191 | Compare ↗ |
| #16,486 | heroku/heroku-buildpack-scala This Project | Ruby | ★ 190 | |
| #16,486 | stevej/scala-json | Scala | ★ 190 | Compare ↗ |
| #16,486 | jeffp/enumerated_attribute | Ruby | ★ 190 | Compare ↗ |
| #16,486 | jruby/joni | Java | ★ 190 | Compare ↗ |
| #16,486 | mintdigital/asset_hat | Ruby | ★ 190 | Compare ↗ |
| #16,486 | SonarSource/sonar-scanner-jenkins | Java | ★ 190 | Compare ↗ |
Frequently Asked Questions
What does heroku-buildpack-scala do? +
Heroku's classic buildpack for Scala apps
Is heroku-buildpack-scala actively maintained in 2026? +
Yes, heroku-buildpack-scala is actively maintained. The latest code push was recorded on Oct 1, 2026 (30 days ago). It holds a calculated Maintenance Health Score of 92/100 (A rating) with 190 stars and 7 open issues.
What language is heroku-buildpack-scala written in? +
The primary language is Ruby. Topics include: buildpack, heroku, heroku-languages, scala.
How many stars does heroku-buildpack-scala have? +
heroku-buildpack-scala has 190 stars and 316 forks on GitHub.
How does heroku-buildpack-scala rank among GitHub repositories? +
With 190 stars, heroku/heroku-buildpack-scala is ranked #16,486 globally across all repositories tracked on GitHubRepo and #973 among Ruby projects.
What license is heroku-buildpack-scala distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
