A functional reactive framework for managing state and side effects written in Kotlin.
⚡ Executive Summary & Quick Facts
Authoritative Sourceformula is formula is an open-source project written in Kotlin: A functional reactive framework for managing state and side effects written in Kotlin..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of October 2026), instacart/formula has accumulated 156 GitHub stars and 16 forks. It is written in Kotlin, licensed under BSD-3-Clause-Clear, and ranks #17,780 globally. It is actively maintained with the latest commit recorded on Oct 21, 2026.”
| Repository | instacart/formula ↗ |
|---|---|
| Primary Category | android |
| Language & Stack | Kotlin |
| Software License | BSD-3-Clause-Clear |
| Community Traction | ★ 156 stars · ⑂ 16 forks · #17,780 globally |
| Maintenance | ● Active (Last commit: Oct 21, 2026) · 12 open issues |
| Target Audience | Developers and engineering teams building with Kotlin, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 93/100 · Grade A+Yes, formula is actively maintained. Continuous telemetry recorded the last code commit on Oct 21, 2026 (7 days ago). Supported by 156 stars and 16 community forks, this repository holds a calculated health index of 93/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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+10
STARS · LAST 30 DAYS
1
PER DAY
#801
MOST-STARRED Kotlin
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +10 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +3 | +10 |
formula gained 10 stars in the last 30 days, about 1 a day, and now has 156. It is about 8 years old and has averaged roughly 20 stars a year. It ranks #801 among Kotlin repositories and #17,780 across all languages on GitHubRepo.
Trending Record
8
DAYS ON TRENDING
#15511
BEST RANK
Oct 21, 2026
FIRST APPEARANCE
Active
STATUS TODAY
formula has maintained a continuous presence across global trending indexes, peaking at #15511. Below is the 30-day activity profile:
💡 Overview
formula is an open-source project written in Kotlin: A functional reactive framework for managing state and side effects written in Kotlin.
Engineered for speed, consistency, and developer ease, it solves common hurdles in android, formula, functional-reactive-programming. 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 Kotlin 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/instacart/formula.git
cd formula⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
JDK 17+, Kotlin compiler >= 1.9
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
formula coordinates its core functionality through a modular Kotlin 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 formula using your package manager: `git clone https://github.com/instacart/formula.git`
Initialize your project workspace or configuration file for formula.
Import formula into your codebase or invoke it directly from your terminal.
Execute your test suite or run `formula --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Kotlin, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
instacart/formula is currently ranked #17,780 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #17,723 | skydoves/nowinandroid-kmp | Kotlin | ★ 157 | Compare ↗ |
| #17,723 | SamGu-NRX/Caret | Swift | ★ 157 | Compare ↗ |
| #17,723 | allebee/jevk5 | Python | ★ 157 | Compare ↗ |
| #17,723 | solongate/agent-security | Go | ★ 157 | Compare ↗ |
| #17,723 | AgenticsWorks/AgentPeerChat | JavaScript | ★ 157 | Compare ↗ |
| #17,780 | instacart/formula This Project | Kotlin | ★ 156 | |
| #17,780 | tenderlove/namecase | Ruby | ★ 156 | Compare ↗ |
| #17,780 | rick/linode | Ruby | ★ 156 | Compare ↗ |
| #17,780 | SableCC/sablecc | Java | ★ 156 | Compare ↗ |
| #17,780 | mazenharake/cecho | Erlang | ★ 156 | Compare ↗ |
| #17,780 | sqlobject/sqlobject | Python | ★ 156 | Compare ↗ |
Frequently Asked Questions
What does formula do? +
A functional reactive framework for managing state and side effects written in Kotlin.
Is formula actively maintained in 2026? +
Yes, formula is actively maintained. The latest code push was recorded on Oct 21, 2026 (7 days ago). It holds a calculated Maintenance Health Score of 93/100 (A+ rating) with 156 stars and 12 open issues.
What language is formula written in? +
The primary language is Kotlin. Topics include: android, formula, functional-reactive-programming, kotlin, state-management.
How many stars does formula have? +
formula has 156 stars and 16 forks on GitHub.
How does formula rank among GitHub repositories? +
With 156 stars, instacart/formula is ranked #17,780 globally across all repositories tracked on GitHubRepo and #801 among Kotlin projects.
What license is formula distributed under? +
The repository reports a BSD-3-Clause-Clear license. Always verify the repository LICENSE file for legal terms.
