The library for web and native user interfaces.
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Declarative routing for React
Terraform enables you to safely and predictably create, change, and improve infrastructure. It is a source-available tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.
A declarative, efficient, and flexible JavaScript library for building user interfaces.
OpenTofu lets you declaratively manage your cloud infrastructure.
Orchestrate everything, everywhere. The open-source control plane for workflows across data, infrastructure, business processes and AI agents. Declarative YAML, event-driven, any language, Git-versioned, scalable to millions of executions.
Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.
Declarative Continuous Deployment for Kubernetes
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps.
A declarative, simple, fast, and fun package for building command line tools in Go
Compose Multiplatform, a modern UI framework for Kotlin that makes building performant and beautiful user interfaces easy and enjoyable.
The interactive graphing library for Python :sparkles:
The batteries-included full-stack framework for the AI era. Develop JS/TS web apps (React, Node.js, and Prisma) using declarative code that abstracts away complex full-stack features like auth, background jobs, RPC, email sending, end-to-end type safety, single-command deployment, and more.
Nix, the purely functional package manager
A declarative, HTML-based language that makes building web apps fun
Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.
Open Policy Agent (OPA) is an open source, general-purpose policy engine.
A declarative API to handle Android runtime permissions.
Declarative visualization library for Python
A declarative JavaScript library for application development using cloud services.
Declarative schema migrations with schema-as-code workflows
A declarative framework for building efficient UIs on Android.
Fast, Declarative, Reproducible, and Composable Developer Environments using Nix
A declarative Auto Layout DSL for Swift :iphone::triangular_ruler: